APA (7th ed.) Citation

Cohen, J. M. (1980). The Penguin dictionary of modern quotations (2nd ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Cohen, John Michael. The Penguin Dictionary of Modern Quotations. 2nd ed. London: Penguin Books, 1980.

MLA (9th ed.) Citation

Cohen, John Michael. The Penguin Dictionary of Modern Quotations. 2nd ed. Penguin Books, 1980.