Cita APA (7a ed.)

Ketchum, R. M., & Brumberg, A. (1963). What is Communism? E. P. Dutton & Co..

Cita Chicago Style (17a ed.)

Ketchum, Richard M., y Abraham Brumberg. What Is Communism? New York: E. P. Dutton & Co., 1963.

Cita MLA (8a ed.)

Ketchum, Richard M., y Abraham Brumberg. What Is Communism? E. P. Dutton & Co., 1963.