APA (7th ed.) Citation

Duellman, W. E. (1999). Patterns of distribution of amphibians: A global perspective. Johns Hopkins University Press.

Chicago Style (17th ed.) Citation

Duellman, William Edward. Patterns of Distribution of Amphibians: A Global Perspective. Baltimore, MD: Johns Hopkins University Press, 1999.

MLA (9th ed.) Citation

Duellman, William Edward. Patterns of Distribution of Amphibians: A Global Perspective. Johns Hopkins University Press, 1999.