Dictionary & Thesaurus
(Merriam-Webster)
Encyclopedia
Brittanica
Funk & Wagnall's New World Encyclopedia
Oxford English
Dictionary -
guide to the meaning, history, and
pronunciation of over half a million words, both present and past.
World Almanac
- includes the contents of The World
Almanac and Book of Facts, The World Almanac of the U.S.A., The World Almanac of U.S.
Politics, and The World Almanac for Kids.