Plamenatz, J. P. (1975). Karl Marx's philosophy of man. Clarendon Press.
Cita Chicago (17th ed.)Plamenatz, John Petrov. Karl Marx's Philosophy of Man. Oxford [Eng.]: Clarendon Press, 1975.
Cita MLA (9th ed.)Plamenatz, John Petrov. Karl Marx's Philosophy of Man. Clarendon Press, 1975.
Atenció: Aquestes cites poden no estar 100% correctes.