A style guide or style manual is a set of standards for design and writing of documents, either for general use or for a specific publication or organization.

For the design of Web pages and Web sites. Covers graphic and information design, page layout, Web graphics, site organization, navigation, and Web multimedia content.

General format of APA citation, the most commonly used style in the sciences.

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The following web pages are excerpted from the APA Style Guide to Electronic References (© 2007) and the fifth edition of the Publication Manual (© 2001).