APA (7th ed.) Citation

Weaver, H. G. (1979). The Mainspring of Human Progress. The Foundation for Economic Education.

Chicago Style (17th ed.) Citation

Weaver, Henry Grady. The Mainspring of Human Progress. The Foundation for Economic Education, 1979.

MLA (8th ed.) Citation

Weaver, Henry Grady. The Mainspring of Human Progress. The Foundation for Economic Education, 1979.

Warning: These citations may not always be 100% accurate.