APA (7th ed.) Citation

Nelson, D. (2003). The penguin dictionary of mathematics (3rd ed.). Penguin Books.

Chicago Style (17th ed.) Citation

Nelson, David. The Penguin Dictionary of Mathematics. 3rd ed. New York: Penguin Books, 2003.

MLA (8th ed.) Citation

Nelson, David. The Penguin Dictionary of Mathematics. 3rd ed. Penguin Books, 2003.