APA (7th ed.) Citation

Clarke, C., Dawes, W., & McLennan, C. (2009). Reptiles. Usborne Pub. Ltd.

Chicago Style (17th ed.) Citation

Clarke, Catriona, Will Dawes, and Connie McLennan. Reptiles. London: Usborne Pub. Ltd, 2009.

MLA (9th ed.) Citation

Clarke, Catriona, et al. Reptiles. Usborne Pub. Ltd, 2009.