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Encyclopedias, Dictionaries, and Directories   Tags: directories, encyclopedias, reference, research  

Last Updated: Jul 7, 2014 URL: Print Guide RSS UpdatesEmail Alerts
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MCPL's Premium Electronic Encyclopedias, Dictionaries, and Directories

Access to these services requires a library card from Montgomery County Public Libraries and a PIN.  Having access problems?  If so, please see our Troubleshooting page or call Ask-a-Librarian at 240-777-0001.


World Book


World Book Online

  • World Book Kids - For young students, featuring simple navigation, easy-to-read articles, pictures, videos, games and activities.
  • Info Finder - For elementary and middle schoolers.
  • Reference Center - For high school students and adults, featuring an encyclopedia, multimedia, periodical articles, and primary sources.
  • Enciclopedia Estudiantil Hallazgos - Una enciclopedia de conocimientos generales de World Book.
Gale Encyclopedia of American Law

Gale Encyclopedia of American Law

14-volume reference work, published 2011. Covers leading cases, major statutes, legal terms and concepts, notable persons involved with the law, and important documents. Includes topics such as the Americans with Disabilities Act, capital punishment, domestic violence, gay and lesbian rights, physician-assisted suicide and many more.

Gale Virtual Reference Library

Gale Virtual Reference Library

Full-text reference books on topics including business, history, law, philosophy, psychology, religion, and science. Fully searchable and browsable. Examples of titles include


Oxford English Dictionary

Oxford English Dictionary

Word entries include definitions, pronunciation, and history, with quotations that trace word usage over time.  


Business Directories

  • Reference USA
    Find businesses in the U.S. and Canada by name, address, and phone number, as well as by type, size, and location. Find U.S. residences by name, address, phone number, or reverse lookup.  Export to Excel for mailing or other purposes.  Search for jobs by type, keywords, geography, and estimated salary.  Find business profiles in the U.S. and Canada by type, size, and location, as well as by name, address, and phone number.  Includes limited download options.Learn to use Reference USA's many features by blog (registration required) or by online video tutorials.
  • Advertising Redbooks
    Searchable profiles of U.S. and international advertising agencies and public relations firms. Plus profiles of companies that advertise, including their brands and personnel.
  • Business Insights: Global
    Provides US and worldwide company and industry profiles.  Also:  industry research reports; case studies; economic and business statistics; and journal articles.
  • Encyclopedia of Associations
    Information about national, international, and local nonprofit and membership organizations. Part of the Gale Directory Library.
  • Standard & Poor's NetAdvantage
    Includes S&P's Register of Corporations, Executives & Directors and the Security Dealers of North America directories.

Government Directories

Media Directories


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