APA (7th ed.) Citation

Knowles, E. (1998). The Oxford dictionary of twentieth century quotations. Oxford University Press.

Chicago Style (17th ed.) Citation

Knowles, Elizabeth. The Oxford Dictionary of Twentieth Century Quotations. Oxford: Oxford University Press, 1998.

MLA (8th ed.) Citation

Knowles, Elizabeth. The Oxford Dictionary of Twentieth Century Quotations. Oxford University Press, 1998.