APA (7th ed.) Citation

Davidson, Dickins, & Doherty. (2002). Whales and dolphins. Usborne.

Chicago Style (17th ed.) Citation

Davidson, Dickins, and Doherty. Whales and Dolphins. London: Usborne, 2002.

MLA (8th ed.) Citation

Davidson, et al. Whales and Dolphins. Usborne, 2002.