Citazione Stile APA (7a Edizione)

MARX, K. (1960). The essential left: Four classic texts on the principles of socialism. Unwin.

Citazione stile Chigago Style (17a edizione)

MARX, Karl. The Essential Left: Four Classic Texts on the Principles of Socialism. London: Unwin, 1960.

Citatione MLA (9a ed.)

MARX, Karl. The Essential Left: Four Classic Texts on the Principles of Socialism. Unwin, 1960.