Cita APA

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

Citación estilo Chicago

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

Cita MLA

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