Search individually or all together the complete content of hundreds of reference books in all disciplines. Browse subject collections in the left sidebar. Use this especially when you are researching a subject that may straddle disciplines to maximize your results.
Includes the complete content of a number of print reference sets. Search individually or choose any number of these sets to search simultaneously. Sets include: Defining Documents, Great Events from History, Great Lives from History, Milestone Documents, and The Reference Shelf.
Reference Sources are...
Dictionaries and Thesauruses
Also Bibliographies, Directories, Handbooks, and Indexes