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Dictionaries & Encyclopedias
Encyclopedia Americana
Long a standard in school, academic and public library collections, the online version of this standard reference source provides users with the depth and accuracy of the print edition and the currency expected of an online reference work.

Grolier Multimedia Encyclopedia
Based on the text of the Academic American Encyclopedia, this highly respected reference work has evolved into an online multimedia resource containing thousands of new and expanded articles, links, animations, dynamic maps, videos and more.

Oxford English Dictionary
Considered the ultimate authority on the English language, use this resource to find information on the meaning, history and pronunciation of over 500,000 words both past and present.

New Book of Knowledge
A long standing favorite encyclopedia for children, the online version provides an accurate, accessible and fun-to-read information source for elementary school-age students.

 

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  Prince William Public Library System
Prince William County, Virginia 22192
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