APA (7th ed.) Citation

Clark, H. F., & Crobaugh, M. (1937). Life earnings in selected occupations in the United States. Harper & Brothers.

Chicago Style (17th ed.) Citation

Clark, Harold Florian, and Mervyn Crobaugh. Life Earnings in Selected Occupations in the United States. New York and London: Harper & Brothers, 1937.

MLA (8th ed.) Citation

Clark, Harold Florian, and Mervyn Crobaugh. Life Earnings in Selected Occupations in the United States. Harper & Brothers, 1937.