APA (7th ed.) Citation

Prothero, D. R., & Williams, M. P. (2017). The Princeton field guide to prehistoric mammals. Princeton University Press.

Chicago Style (17th ed.) Citation

Prothero, Donald R., and Mary Persis Williams. The Princeton Field Guide to Prehistoric Mammals. Princeton, New Jersey: Princeton University Press, 2017.

MLA (8th ed.) Citation

Prothero, Donald R., and Mary Persis Williams. The Princeton Field Guide to Prehistoric Mammals. Princeton University Press, 2017.