Ridpath, J. C. (1878). History of the United States: Prepared especially for schools : on a new and comprehensive plan, embracing the features of Lyman's historical chart (Grammar school ed., illustrated with charts, maps, portraits, sketches, and diagrams.). Cincinnati: Jones Brothers & Co..

Ridpath, John Clark. History of the United States: Prepared Especially for Schools : On a New and Comprehensive Plan, Embracing the Features of Lyman's Historical Chart. Grammar school ed., illustrated with charts, maps, portraits, sketches, and diagrams. Cincinnati: Jones Brothers & Co., 1878.

Ridpath, John Clark. History of the United States: Prepared Especially for Schools : On a New and Comprehensive Plan, Embracing the Features of Lyman's Historical Chart. Grammar school ed., illustrated with charts, maps, portraits, sketches, and diagrams. Cincinnati: Jones Brothers & Co., 1878.