Hook, S. (1955). Marx and the Marxists: The ambiguous legacy. D.Van Nostrand.
Cita Chicago (17th ed.)Hook, Sidney. Marx and the Marxists: The Ambiguous Legacy. Princeton: D.Van Nostrand, 1955.
Cita MLA (9th ed.)Hook, Sidney. Marx and the Marxists: The Ambiguous Legacy. D.Van Nostrand, 1955.
Atenció: Aquestes cites poden no estar 100% correctes.