APA (7th ed.) Citation

Mertens, R. (1960). The world of amphibians and reptiles. McGraw-Hill.

Chicago Style (17th ed.) Citation

Mertens, Robert. The World of Amphibians and Reptiles. New York: McGraw-Hill, 1960.

MLA (9th ed.) Citation

Mertens, Robert. The World of Amphibians and Reptiles. McGraw-Hill, 1960.