Reference Sources

Use these online resources to access encyclopedia articles, dictionaries entries, biographical information, and information on current events and controversies.  Many of these databases also contain maps, guides, handbooks, and other ready-reference materials.

Credo Reference Over 360 online reference titles in all subject areas.  Allows cross-referencing between titles and expanding searches into the Truman catalog and other library resources.	Opposing Viewpoints in Context Information on current social issues, including viewpoint articles, topic overviews, full-text magazine and newspaper articles, primary source documents, statistics, images, podcasts, and other website links.
Gale Virtual Reference A growing collection of more than 5,000 full-text ebooks providing reference in nearly any subject, including health, business, careers, history, literature, and biography.	Biography Resource Center Includes biographies and full-text articles from hundreds of magazines and newspapers on people from all eras and fields of endeavor. It also includes tens of thousands of images and links to vetted websites.
Oxford English Dictionary Widely regarded as the accepted authority on the English language.  Guide to the meaning, history, and pronunciation of over 600,000 words from across the English-speaking world.	Biography and Genealogy Master Index A comprehensive index to biographical sources. One simultaneous user.

To locate encyclopedias, dictionaries, and other reference resources (both print and electronic) related to specific subjects, access the library's subject guides at
http://library.truman.edu/subsplus/subjects/

Reference may be found through the library's online catalog by keyword or subject searches that add terms for the type of work.

            United States--History--Dictionaries
            Physics--Handbooks, manuals, etc.