This is an old revision of this page, as edited by Finell (talk | contribs) at 19:20, 23 January 2008 (→When adding material that is challenged or likely to be challenged: Delete new "guideline" added by one user without discussion or concensus - see Talk page). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.
Revision as of 19:20, 23 January 2008 by Finell (talk | contribs) (→When adding material that is challenged or likely to be challenged: Delete new "guideline" added by one user without discussion or concensus - see Talk page)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff) WP:REF redirects here; you may also be looking for details on the <ref> element or the Misplaced Pages Reference Desk or Misplaced Pages:Citation templates.
This page documents an English Misplaced Pages style guideline. Editors should generally follow it, though exceptions may apply. Substantive edits to this page should reflect consensus. When in doubt, discuss first on this guideline's talk page. | Shortcut
|
This page in a nutshell: Material challenged or likely to be challenged needs a reliable source. This page explains how to write the citations. |
Policies and guidelines (list) |
---|
Principles |
Content policies |
Conduct policies |
Other policy categories |
Directories |
This page is a style guide, describing how to write citations in articles.
Misplaced Pages:Verifiability, which is policy, says that attribution is required for "direct quotes and for material that is challenged or likely to be challenged." Any material that is challenged, and for which no source is provided within a reasonable time (or immediately if it's about a living person), may be removed by any editor. For information about the importance of using good sources in biographies of living persons, see Misplaced Pages:Biographies of living persons, which is also policy.
If you don't know how to format a citation, provide as much information as you can, and others will help to write it correctly.
Why sources should be cited
Main pages: Misplaced Pages:Verifiability and Misplaced Pages:No original researchMisplaced Pages is by its very nature a work by people with widely different knowledge and skills. The reader needs to be assured that the material within it is reliable: this is especially important where statements are made about controversial issues. The purpose of citing your sources is:
- To improve the credibility of Misplaced Pages.
- To avoid claims of plagiarism.
- To show that your edit is not original research and to reduce editorial disputes.
- To ensure that the content of articles can be checked by any reader or editor.
- To help users find additional information on the topic.
- To ensure that material about living persons complies with Misplaced Pages:Biographies of living persons.
When to cite sources
Manual of Style (MoS) | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Content | ||||||||||
Formatting | ||||||||||
Images | ||||||||||
Layout | ||||||||||
Lists | ||||||||||
By topic area
|
||||||||||
Related guidelines | ||||||||||
When adding material that is challenged or likely to be challenged
Main page: Misplaced Pages:VerifiabilityWP:V says: All material that is challenged or likely to be challenged needs a source.
The need for citations is especially important when writing about opinions held on a particular issue. Avoid weasel words where possible, such as, "Some people say ..." Instead, make your writing verifiable: find a specific person or group who holds that opinion and give a citation to a reputable publication in which they express that opinion. Remember that Misplaced Pages is not a place for expressing your own opinions or for original research.
Because this is the English Misplaced Pages, English-language sources should be given whenever possible, and should always be used in preference to other language sources of equal calibre. However, do give references in other languages where appropriate. If quoting from a different language source, an English translation should be given with the original-language quote beside it.
When quoting someone
Main page: Misplaced Pages:VerifiabilityYou should always add a citation when quoting published material, and the citation should be placed directly after the quotation, which should be enclosed within double quotation marks — "like this" — or single quotation marks if it is a quote-within-a-quote — "and here is such a 'quotation' as an example." For long quotes, you may wish to use Quotation templates.
When adding material to the biography of a living person
Main page: Misplaced Pages:Biographies of living personsBiographies of living persons should be sourced with particular care, for legal and ethical reasons. All contentious material about living persons must cite a reliable source. Do not wait for another editor to request a source. If you find unsourced or poorly sourced contentious material about a living person — whether in an article or on a talk page — remove it immediately! Do not leave it in the article and ask for a source. Do not move it to the talk page. This applies whether the material is in a biography or any other article.
When checking content added by others
You can also add sources for material you did not write. Adding citations is an excellent way to contribute to Misplaced Pages. See Misplaced Pages:WikiProject Fact and Reference Check for organized efforts to add citations.
When uploading an image
Images must include source details and a copyright tag on the image description page. It is important that you list the author of the image if known (especially if different from the source), which is important both for copyright and for informational purposes. Some copyright licenses require that the original author receive credit for their work. If you download an image from the web, you should give the URL:
- Source: Downloaded from http://news.bbc.co.uk/1/hi/world/europe/4280841.stm
If you got the image from an offline source, you should specify:
- Source: Scanned from public record #5253 on file with Anytown, Somestate public surveyor
Any image with a nonfree copyright license must be accompanied by a non-free use rationale (also called a fair use rationale) for each article in which the image is used.
How to cite sources
Shortcut- ]
General references versus inline citations
Articles can be supported with references in two ways: the provision of general references – books or other sources that support a significant amount of the material in the article – and inline citations, which are mandated by the featured article and good article criteria. Inline citations are references within the text that provide source information for specific statements. They are needed for statements that are challenged or likely to be challenged, including contentious material about living persons, and for all quotations.
Say where you found the material
It is improper to copy a citation from an intermediate source without making clear that you saw only that intermediate source. For example, you might find some information on a web page which says it comes from a certain book. Unless you look at the book yourself to check that the information is there, your reference is really the web page, which is what you must cite. The credibility of your article rests on the credibility of the web page, as well as the book, and your article must make that clear.
Provide full citations
All citation techniques require detailed full citations to be provided for each source used. Full citations must contain enough information for other editors to identify the specific published work you used.
Full citations for books typically include: the name of the author, the title of the book or article, the date of publication, and page numbers. The name of the publisher, city of publication, and ISBN are optional. For journal articles, include volume number, issue number and page numbers. Citations for newspaper articles typically include the title of the article in quotes, the byline (author's name), the name of the newspaper in italics, date of publication, page number(s), and the date you retrieved it if it is online.
Provide page numbers
When citing books and articles, provide page numbers where appropriate. Page numbers should be included whenever possible in a citation that accompanies a specific quotation from, or a paraphrase or reference to, a specific passage of a book or article. The edition of the book should be included in the reference section, or included in the footnote, because pagination can change between editions. Page numbers are especially important in case of lengthy unindexed books. Page numbers are not required when a citation accompanies a general description of a book or article, or when a book or article, as a whole, is being used to exemplify a particular point of view.
Inline citation styles
Harvard referencing
Further information: Misplaced Pages:Harvard referencingUnder the Harvard referencing system, a book is cited in the text in parentheses, after the section, sentence, or paragraph for which the book was used as a source, using the surname of the author and the year of publication only, with the parentheses closing before the period, as in (Author 2005). These citations can be generated by using inline {{Harvard citation}} templates, though templates should not be added over objections.
A full citation is then placed at the end of the text in an alphabetized list of "References". If full citations use the {{Citation}} template, the Harvard citation as above will include an automatic link to the full citation. According to The Oxford Style Manual, the Harvard system is the "most commonly used reference method in the physical and social sciences" (Ritter 2002).
Page numbers must be included in a citation that accompanies a specific quotation from, or a paraphrase or reference to, a specific passage of a book or article. They usually follow the date in this way: (Author 2006:28).
In article, common variations:
- For two authors, use (Smith & Jones 2005); for more authors, use (Smith et al. 2005).
- If the same author has published two books in 1996, and both are being referenced in the text, this is written as (Clancy 1996a) and (Clancy 1996b).
- The specific page, section, or division of the cited work should usually follow the date in this way: (Author 2006:28).
- If the date of publication is unavailable, use "n.d." (meaning, no date)
- Newspaper articles may give the name of the newspaper and the date of publication after the sentence (The Guardian, December 17, 2005).
In a "References" section at the end of the article:
For an article: in the case of (Traynor 2005) or (The Guardian, December 17, 2005), this might be:
- Traynor, I. "Judge tells Ankara to decide on fate of leading author", The Guardian, December 17, 2005.
Footnotes
Further information: Misplaced Pages:FootnotesA footnote is a note placed at the bottom of a page of a document to comment on a part of the main text, or to provide a reference for it, or both. The connection between the relevant text and its footnote is indicated by a number or symbol which appears both after the relevant text and before the footnote.
- Place a <ref> ... </ref> where you want a footnote reference number to appear in an article—type the text of the note between the ref tags.
- Place {{reflist}} or <references/> in an otherwise empty "Notes" or "References" section near the end of the article—the list of notes will be automatically generated here. If you want to create columns of notes, write {{reflist|2}}.
Example:
The Sun is pretty big,<ref>Miller, E: "The Sun", page 23. Academic Press, 2005</ref>
however the Moon is not so big.<ref>Smith, R: "Size of the Moon", ''Scientific American'', 46(78):46</ref>
== Notes ==
{{reflist}}
Result:
The Sun is pretty big, however the Moon is not so big.
Section headings
Recommended section names to use for footnotes in Misplaced Pages are:
- ==Notes==
- ==Footnotes==
- ==References==
Maintaining a "References" section in addition to "Notes"
It can be helpful when footnotes are used that a separate "References" section be maintained, in which the sources that were used are listed in alphabetical order. With articles that have lots of footnotes, it can become hard to see which sources have been used, particularly when the footnotes contain explanatory text. A References section, which lists citations in alphabetical order, helps readers to see at a glance the quality of the references used.
If such a section is included, the footnotes should be in a separate section entitled "Notes" or "Footnotes." Where an alphabetical list of references is provided, "short footnotes" may be used, where the footnotes contain only an author, perhaps title, and page number, without giving a full citation in the footnote itself.
Ref tags and punctuation
Some material must be referenced mid-sentence, but footnotes are usually placed at the end of a sentence or paragraph. Footnotes at the end of a sentence or phrase are normally placed immediately after the punctuation, except for dashes, as recommended by the Chicago Manual of Style. For example: President Bush called for a halt to the violence, and opposed a timetable for withdrawal. Some editors prefer the style of journals such as Nature, which place references before punctuation. If an article has evolved using predominantly one style of ref tag placement, the whole article should conform to that style unless there is a consensus to change it.
Notes
- Examples of footnotes generated by this page:
- Miller, E: "The Sun", page 23. Academic Press, 2005
- Smith, R: "Size of the Moon", Scientific American, 46(78):46
- The Chicago Manual of Style, 14th ed. 1993, Clause 15.8, p. 494 - "The superior numerals used for note reference numbers in the text should follow any punctuation marks except the dash, which they precede. The numbers should also be placed outside closing parentheses."
- example footnote abc
- example footnote xyz
Embedded links
Further information: Misplaced Pages:Embedded citationsWeb pages referenced in an article can be linked to directly by enclosing the URL in square brackets. For example, a reference to a newspaper article can be embedded like: , which looks like this:
A full citation is also required in a References section at the end of the article.
*Plunkett, John. , ''The Guardian'', ] ]. Accessed ] ].
which appears as:
- Plunkett, John. "Sorrell accuses Murdoch of panic buying", The Guardian, October 27 2005. Accessed October 27 2005.
Citation templates
Further information: Misplaced Pages:Citation templatesThe use of citation templates is neither encouraged nor discouraged. Templates may be used at the discretion of individual editors, subject to agreement with other editors on the article. Some editors find them helpful, arguing that they maintain a consistent style across articles, while other editors find them distracting when used inline in the text, because they make the text harder to read in edit mode and harder to edit. Because they are optional and can be contentious, citation templates should not be added against consensus, and editors should not change articles from one style to another if there are objections.
Various citation templates can be used to format full citations. Template for specific formats, such as {{cite book}}, are common. The general {{Citation}} template has additional functionality to support Harvard referencing.
Further reading/External links
An ==External links== or ==Further reading== or ==Bibliography== section is placed near the end of an article and offers books, articles, and links to websites related to the topic that might be of interest to the reader. The section "Further reading" may include both online material and material not available online. If all recommended material is online, the section may be titled "External links".
All items used as sources in the article must be listed in the "References" or "Notes" section, and are usually not included in "Further reading" or "External links". However, if an item used as a reference covers the topic beyond the scope of the article, and has significant usefulness beyond verification of the article, you may want to include it here as well. This also makes it easier for users to identify all the major recommended resources on a topic. The Misplaced Pages guideline for external links that are not used as sources can be found here.
Convenience links
The term "convenience link" is typically used to indicate a link to a copy of a resource somewhere on the Internet, offered in addition to a formal citation to the same resource in its original format. It is important to ensure that the copy being linked is a true copy of the original, without any comments, emendations, edits or changes. When the "convenience link" is hosted by a site that is considered reliable on its own, this is relatively easy to assume. However, when such a link is hosted on a less reliable site, the linked version should be checked for accuracy against the original, or not linked at all if such verification is not possible.
Where several sites host a copy of the desired resource, the site selected as the convenience link should be the one whose general content is most in line with Misplaced Pages:Neutral point of view and Misplaced Pages:Verifiability. While no-cost sites are preferred, convenience links to nonfree archives such as Jstor are permitted provided the reference is freely available to the public (in libraries, for example).
Scrolling lists
Scrolling lists, for example of references, should never be used because of issues with readability, accessibility, printing, and site mirroring. Additionally, it cannot be guaranteed that such lists will display properly in all web browsers.
Dealing with citation problems
Unsourced material
If an article has no references, and you are unable to find them yourself, you can tag the article with the template {{Unreferenced}}, so long as the article is not nonsensical or a BLP, in which case request admin assistance. If a particular claim in an article lacks citation and is doubtful, consider placing {{fact}} after the sentence or removing it. Consider the following in deciding which action to take:
1. If it is doubtful but not harmful to the whole article or to Misplaced Pages, use the {{fact}} tag, but remember to go back and remove the claim if no source is produced within a reasonable time.
2. If it is doubtful and harmful, you should remove it from the article; you may want to move it to the talk page and ask for a source, unless you regard it as very harmful or absurd, in which case it should not be posted to a talk page either. Use your common sense.
All unsourced and poorly sourced contentious material about living persons should be removed from articles and talk pages immediately. It should not be tagged. See Misplaced Pages:Biographies of living persons and Misplaced Pages:Libel.
What to do when a reference link "goes dead"
See also: Misplaced Pages:Using the Wayback Machine, WebCite, {{Uw-defunct link}}
When a link in the References section or Notes section "goes dead" (see link rot), it should be repaired or replaced if possible, but the citation need not be deleted. External links/Further reading sections are not as important, but bad links in those sections should also be fixed. Often, a live substitute link can be found. In most cases, one of the following approaches will preserve an acceptable citation:
- If the link was merely a "convenience link" to an online copy of material that originally appeared in print, and an appropriate substitute cannot be found, drop the link but keep the citation.
- Some pages can be recovered from the Internet Archive or WebCite. Go to http://www.webarchive.org/ or http://www.webcitation.org, respectively, and search for the old link by URL. Make sure that your new citation mentions the date the page was archived by the Internet Archive. In the case of WebCite, any broken URL can be searched for and replaced using the format http://www.webcitation.org/query?url=URL&date=DATE, where URL is the URL that is broken and needs to be restored. The DATE variable is optional and indicates the (approximate) caching date. For example, http://www.webcitation.org/query?url=www.pewinternet.org/pdfs/PIP_Health_Report_July_2003.pdf&date=2005-12-31 retrieves a copy of the URL http://www.pewinternet.org/pdfs/PIP_Health_Report_July_2003.pdf which is closest to the date of Dec 31st, 2005 (in this example, the actual caching date was 21 days before the requested date). WebCite allows on-demand prospective archiving and is not crawler-based; i.e. pages are only archived if the author has requested archiving when he cited the piece for the first time, which is highly recommended
- If it was a link to web-only material, it may be worth the effort to search the target site for an equivalent page at a new location, an indication that the whole site has moved, etc.
- If you cannot find the page on the Internet Archive, remember that you can often find recently deleted pages in Google's cache. They will not be there long, and it is no use linking to them, but this may let you find the content, which can be useful in finding an equivalent page elsewhere on the Internet and linking to that.
If none of those strategies succeed, the cited material and citation should be removed if the material is contentious or concerns a living person. Otherwise, if the cited material is retained, record in the citation the date that the original link was found to be inactive — even inactive, it still records the sources that were used, and it is possible hard copies of such references may exist, or alternatively that the page will turn up in the near future in the Internet Archive, which lags by six months or more.
Some source material, especially scientific papers, can be cited using a digital object identifier, by linking through dx.doi.org. This will allow citation links to remain intact even if the URL changes.
Tools
- WebCite - tool to archive webpages to allow stable citation links.
- Template builder — Given an ISBN, a PubMed ID, etc., output a citation which can be pasted into a Misplaced Pages article.
- Reference generator — generates wikicode for journals, webpages, and other commonly cited sources.
- WPCITE - Firefox add-in for one-click creation of partial {{cite news}} information, in footnote format. See the developer's page for details.
- User:CitationTool - tool for finding citation errors and fixing them.
- User:Fictional tool - tool for cleaning up web citations
- Wikicite is a free program that helps editors to properly reference their Misplaced Pages contributions using citation templates. It is written in Visual Basic .NET, making it suitable only for users with the .NET Framework installed on Windows, or, for other platforms, the Mono alternative framework. Wikicite and its source code is freely available, see the developer's page for further details.
- OttoBib.com is a free tool to generate an alphabetized bibliography for books, using an input list of International Standard Book Number (ISBN) numbers, with output in MLA, APA, Chicago/Turabian, BibTeX, or Misplaced Pages format (also generates a permalink).
- Zotero allows you to find articles in Mozilla Firefox and easily paste them into Misplaced Pages as citation templates using Ctrl-Alt-C
- Verisimilus's Cite generation page lets you find articles using built-in Google Scholar interface and automatically produce an appropriate cite template. It also features a BibTeX to {{cite}} converter.
See also
- Misplaced Pages:Citation templates - a full listing of various styles for citing all sorts of materials.
- Misplaced Pages:Scientific citation guidelines – guidelines for dealing with scientific and mathematical articles.
- Misplaced Pages:Copyright problems – in case of text that has been copied verbatim inappropriately.
- Misplaced Pages:Citing sources/example style – listing several examples of APA and Harvard referencing techniques.
- Misplaced Pages:Referencing for beginners A simple practical guide to getting started.
Notes
References
- Concordia Libraries (Concordia University). Citation and Style Guides. Retrieved December 28, 2004. (This provides a list of common citation styles.)
- Citation Styles Handbook: APA
- Citation Styles Handbook: MLA
- APA Style.org
- Using American Psychological Association (APA) Format (Updated to 5th Edition)
- Citing Electronic Documentation (APA, Chicago, MLA)
- The Columbia Guide to Online Style
- Ritter, R. (2002). The Oxford Style Manual. Oxford University Press. ISBN 0-19-860564-1
- University of Chicago Press Staff. (2003). The Chicago Manual of Style, 15th edition. University Of Chicago Press. ISBN 0-226-10403-6
Further reading
- A writer's practical guide to MLA documentation
- AMA Citation Style
- Chicago/Turabian Documentation
- Template:PDFlink
- Guide to Citation Style Guides
- Uniform Requirements for Manuscripts Submitted to Biomedical Journals
- American Chemical Society reference style guidelines
- Citation Machine