Cita APA (7th ed.)

Schumpeter, J. A. (1951). Imperialism and social classes. A. M. Kelley.

Cita Chicago (17th ed.)

Schumpeter, Joseph Alois. Imperialism and Social Classes. New York: A. M. Kelley, 1951.

Cita MLA (8th ed.)

Schumpeter, Joseph Alois. Imperialism and Social Classes. A. M. Kelley, 1951.