Citation is a way of acknowledging your sources of information through a combination of references and a list of works cited. In academic writing, citation must be done according to a particular style that is deemed appropriate to the field. While there are many such styles, the three most common are APA (American Psychological Association), MLA (Modern Language Association), and Turabian (based on the Chicago Manual of Style). On this page, we provide links to help you understand and use these styles. These links should answer most citation questions, but you may need to consult the fuller treatment found in the printed books, which can be found in the reference section of the Emerson and Luhr libraries and in most public and academic libraries.
The records in our online databases contain the information you need to cite a work properly. Click here to find out how to read a citation in a database. See our section on Citing Our Online/Full-text Databases for more information.
Individual instructors may have specific requirements for citation style, and nothing on these pages is intended to replace such instructions. Ask your instructor if you are in doubt about a particular requirement.
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For basic instruction in citation, start with one of these guides. They provide specific examples of how to cite the most common print and online sources.
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Citation style was created long before computers and the internet, and figuring out the appropriate style for citing electronic sources has proved to be an ongoing challenge for the creators of standards for citation. The following web pages may be helpful if you have further questions about citing online sources.
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If you use one of the library's databases to retrieve the full-text of an article, your cite will need to be a combination of both the periodical and a Web site citation. Since electronic full-text versions of articles are not always identical to the printed periodical, it is important to indicate which version you have seen and where. For example, the APA style bibliographic citation for an article from an EbscoHost database, Academic Search Premier, would look like this:

Note: Style formats change frequently! Always refer to the most recent edition of the style manual you're using before citing your sources.
You are usually required to include a URL or Internet address for each online item you list in your bibliography. This is often a problem for materials you get from electronic databases (e.g. Ebscohost, Lexis-Nexis Academic, etc.) because the URLs of the individual articles tend to be quite lengthy and can be different each time you access the article. Instead, you should use the URL for the database provider's website. The URL for each database can be found on our Alphabetical List of Databases page.
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The preceding links should answer most citation questions, but you may need to consult the fuller treatment found in the printed books. These can be found in the reference section of the Emerson library and in most public and academic libraries.
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Updated April 1, 2008
The URL for this page is http://library.webster.edu/guides/citation.html