APA (7th ed.) Citation

Weaver H. G. (1953). Mainspring of human progress (2nd rev ed.). Foundation for Economic Education.

Chicago Style (17th ed.) Citation

Weaver H. G. Mainspring of Human Progress. 2nd rev ed. New York: Foundation for Economic Education, 1953.

MLA (8th ed.) Citation

Weaver H. G. Mainspring of Human Progress. 2nd rev ed. Foundation for Economic Education, 1953.