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Major e-Reference Sources
Oxford Dictionary of National Biography
Biographies of British figures worldwide, from the Romans to the 21st century.
Oxford Language Dictionaries Online
Spanish, French, German, Italian, Russian, Chinese, and Arabic. Usage examples and illustrative phrases, grammar guidance, verb tables, aural pronunciations, explanations of grammatical terms, and help with spelling and punctuation.
Why use reference materials?
for a quick overview of a topic
to develop vocabulary or keywords for searching
for suggestions for further sources