APA (7th ed.) Citation
Cohen, J., & Cohen, M. (1960). <The> Penguin Dictionary of Quotations (1. ed.). Penguin Books.
Chicago Style (17th ed.) Citation
Cohen, J.M, and M.J Cohen. <The> Penguin Dictionary of Quotations. 1. ed. London: Penguin Books, 1960.
MLA (9th ed.) Citation
Cohen, J.M, and M.J Cohen. <The> Penguin Dictionary of Quotations. 1. ed. Penguin Books, 1960.
Warning: These citations may not always be 100% accurate.