History Reference Source This link opens in a new windowDesigned for academic research, this database features full text for more than 1,990 reference books, encyclopedias, and non-fiction books. This content comes from leading history publishers such as Branden Publishing, Compass Point Books, Houghton Mifflin, Lerner Publishing Group, Mason Crest Publishers, Morgan Reynolds Inc., Oliver Press, Oxford University Press, Rourke Publishing LLC, Salem Press, Stackpole Books, and Toucan Valley Publications.