APA (7th ed.) Citation

Thain, M., & Hickman, M. (1994). The Penguin dictionary of biology (9th edition.). Penguin.

Chicago Style (17th ed.) Citation

Thain, M., and M. Hickman. The Penguin Dictionary of Biology. 9th edition. London: Penguin, 1994.

MLA (8th ed.) Citation

Thain, M., and M. Hickman. The Penguin Dictionary of Biology. 9th edition. Penguin, 1994.

Warning: These citations may not always be 100% accurate.