APA (7th ed.) Citation

Williston, S. W., & Gregory, W. K. (1925). The osteology of the reptiles. Harvard University Press.

Chicago Style (17th ed.) Citation

Williston, Samuel Wendell, and William K. Gregory. The Osteology of the Reptiles. Cambridge: Harvard University Press, 1925.

MLA (9th ed.) Citation

Williston, Samuel Wendell, and William K. Gregory. The Osteology of the Reptiles. Harvard University Press, 1925.