APA (7th ed.) Citation

Daugberty, C. R., & Daugberty, M. R. (1950). Principles Of Political Economy. Houghton Mifflin.

Chicago Style (17th ed.) Citation

Daugberty, Carroll R., and Marion R. Daugberty. Principles Of Political Economy. New York: Houghton Mifflin, 1950.

MLA (9th ed.) Citation

Daugberty, Carroll R., and Marion R. Daugberty. Principles Of Political Economy. Houghton Mifflin, 1950.