APA (7th ed.) Citation

De Roy, T., Jones, M., & Cornthwaite, J. (2014). Penguins: The ultimate guide. Princeton University Press.

Chicago Style (17th ed.) Citation

De Roy, Tui, Mark Jones, and Julie Cornthwaite. Penguins: The Ultimate Guide. Princeton: Princeton University Press, 2014.

MLA (8th ed.) Citation

De Roy, Tui, et al. Penguins: The Ultimate Guide. Princeton University Press, 2014.

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