APA (7th ed.) Citation

Daugherty, C. R., & Daugherty, M. R. (1950). Principles of political economy. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Daugherty, Carroll R., and Marion Roberts Daugherty. Principles of Political Economy. Boston: Houghton Mifflin, 1950.

MLA (9th ed.) Citation

Daugherty, Carroll R., and Marion Roberts Daugherty. Principles of Political Economy. Houghton Mifflin, 1950.