APA (7th ed.) Citation

Cohen, J. (1968). The Penguin dictionary of quotations. Penguin.

Chicago Style (17th ed.) Citation

Cohen, J.M. The Penguin Dictionary of Quotations. Harmondsworth: Penguin, 1968.

MLA (9th ed.) Citation

Cohen, J.M. The Penguin Dictionary of Quotations. Penguin, 1968.