Cita APA (7th ed.)

Heilbroner, R. L. (1980). Marxism: For and against. W. W. Norton.

Cita Chicago (17th ed.)

Heilbroner, Robert L. Marxism: For and Against. New York: W. W. Norton, 1980.

Cita MLA (9th ed.)

Heilbroner, Robert L. Marxism: For and Against. W. W. Norton, 1980.

Atenció: Aquestes cites poden no estar 100% correctes.