Cita APA (7a ed.)

Eldridge, S., & Clark, C. D. (1928). Major problems of democracy: A study of social conditions in the United States. Century Co.

Cita Chicago Style (17a ed.)

Eldridge, Seba, y Carroll D. Clark. Major Problems of Democracy: A Study of Social Conditions in the United States. New York & London: Century Co, 1928.

Cita MLA (8a ed.)

Eldridge, Seba, y Carroll D. Clark. Major Problems of Democracy: A Study of Social Conditions in the United States. Century Co, 1928.