APA (7th ed.) Citation

Abercrombie, M., & Hickman, M. (1990). The new penguin dictionary of biology (8th ed.). Penguin books.

Chicago Style (17th ed.) Citation

Abercrombie, M., and M. Hickman. The New Penguin Dictionary of Biology. 8th ed. London: Penguin books, 1990.

MLA (9th ed.) Citation

Abercrombie, M., and M. Hickman. The New Penguin Dictionary of Biology. 8th ed. Penguin books, 1990.