Best Choices:
Credo Reference
Reference library of encyclopedias, dictionaries, thesauri, and books of quotations.
Gale Virtual Reference Library
Variety of reference books covering arts, biography, business, education, environment, general reference, history, information & publishing, law, library science, literature, medicine, multicultural studies, nation & world, religion, science, social science, and technology.
Oxford Dictionaries: English
Dictionary content in English.
Also Try:
Weekly reports on issues in the news. Dictionary content in Chinese. Dictionary content in French. Dictionary content in Spanish. Online version of Oxford English Dictionary. Reference entries across Oxford’s dictionaries, companions, and encyclopedias. Articles from World Book Encyclopedia.CQ Researcher
Oxford Dictionaries: Chinese
Oxford Dictionaries: French
Oxford Dictionaries: Spanish
Oxford English Dictionary
Oxford Reference Online
World Book Online