APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (9th ed.) Citation

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