APA (7th ed.) Citation

Nelson, R. D., & Daintith, J. (1989). The Penguin dictionary of mathematics. Penguin Books.

Chicago Style (17th ed.) Citation

Nelson, R. D., and John Daintith. The Penguin Dictionary of Mathematics. London: Penguin Books, 1989.

MLA (8th ed.) Citation

Nelson, R. D., and John Daintith. The Penguin Dictionary of Mathematics. Penguin Books, 1989.