Singer, P. (2018). Marx: A Very Short Introduction (2nd.). Oxford.
Cita Chicago (17th ed.)Singer, Peter. Marx: A Very Short Introduction. 2nd. Oxford, 2018.
Cita MLA (9th ed.)Singer, Peter. Marx: A Very Short Introduction. 2nd. Oxford, 2018.
Atenció: Aquestes cites poden no estar 100% correctes.