APA (7th ed.) Citation

Weaver, H. G., & Lane, R. W. (1947). The mainspring of human progress. Foundation for Economic Education.

Chicago Style (17th ed.) Citation

Weaver, Henry Grady, and Rose Wilder Lane. The Mainspring of Human Progress. Irvington-on-Hudson, N.Y: Foundation for Economic Education, 1947.

MLA (9th ed.) Citation

Weaver, Henry Grady, and Rose Wilder Lane. The Mainspring of Human Progress. Foundation for Economic Education, 1947.