APA (7th ed.) Citation

Hockey, P. A. R. (2001). The African penguin: A natural history (1. ed.). Struik.

Chicago Style (17th ed.) Citation

Hockey, P. A. R. The African Penguin: A Natural History. 1. ed. Cape Town: Struik, 2001.

MLA (9th ed.) Citation

Hockey, P. A. R. The African Penguin: A Natural History. 1. ed. Struik, 2001.