Cita APA (7th ed.)

O'BRIEN, F. (1965). Crisis in world communism: Marxism in search in search of efficiency. The free press.

Cita Chicago (17th ed.)

O'BRIEN, Frank. Crisis in World Communism: Marxism in Search in Search of Efficiency. New york: The free press, 1965.

Cita MLA (9th ed.)

O'BRIEN, Frank. Crisis in World Communism: Marxism in Search in Search of Efficiency. The free press, 1965.