APA (7th ed.) Citation

Clugston, M. J., & Lord, N. J. (2009). The Penguin dictionary of science (3rd ed.). Penguin.

Chicago Style (17th ed.) Citation

Clugston, M. J., and N. J. Lord. The Penguin Dictionary of Science. 3rd ed. London ; New York: Penguin, 2009.

MLA (9th ed.) Citation

Clugston, M. J., and N. J. Lord. The Penguin Dictionary of Science. 3rd ed. Penguin, 2009.