APA (7th ed.) Citation

Stephenson, T., Whittle, S., & Hamilton, C. (2013). The warbler guide. Princeton University Press.

Chicago Style (17th ed.) Citation

Stephenson, Tom, Scott Whittle, and Catherine Hamilton. The Warbler Guide. Princeton, N.J.: Princeton University Press, 2013.

MLA (9th ed.) Citation

Stephenson, Tom, et al. The Warbler Guide. Princeton University Press, 2013.