APA (7th ed.) Citation

Gans, C., Billet, F., & Maderson, P. F. A. (1985). Biology of the reptilia. Wiley & Sons.

Chicago Style (17th ed.) Citation

Gans, Carl, Frank Billet, and Paul F. A. Maderson. Biology of the Reptilia. New York [etc.]: Wiley & Sons, 1985.

MLA (9th ed.) Citation

Gans, Carl, et al. Biology of the Reptilia. Wiley & Sons, 1985.