APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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