APA (7th ed.) Citation

Watson, H., Dyson, N., & Ferrero, M. (2017). 199 zoo animals. Usborne Publishing Ltd..

Chicago Style (17th ed.) Citation

Watson, Hannah, Nikki Dyson, and Mar Ferrero. 199 Zoo Animals. London: Usborne Publishing Ltd., 2017.

MLA (8th ed.) Citation

Watson, Hannah, et al. 199 Zoo Animals. Usborne Publishing Ltd., 2017.