APA (7th ed.) Citation

Mills, C. W. (1973). The Marxists. Penguin Books.

Chicago Style (17th ed.) Citation

Mills, C. Wright. The Marxists. Harmondsworth [u.a.]: Penguin Books, 1973.

MLA (8th ed.) Citation

Mills, C. Wright. The Marxists. Penguin Books, 1973.