IMPORTANT NOTE: Most educators and professionals do not consider it appropriate to use tertiary sources such as encyclopedias as a sole source for any information — citing an encyclopedia as an important reference in footnotes or bibiliographies may result in censure or a failing grade. Wikipedia articles should be used for background information, as a reference for correct terminology and search terms, and as a starting point for further research.
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Next you get bibliographic details about the page; page name, author (wikipedia contributors), publisher (wikipedia of course), date of last revision, date retrieved, permalink, a link to view primary contributors to the page, and page version ID.
In addition there are citation examples for just about every different style manual you can image (APA and MLA included of course). I love it!