APA (7th ed.) Citation

Halliday, T., & Adler, K. (1986). The encyclopedia of reptiles and amphibians. Facts on File.

Chicago Style (17th ed.) Citation

Halliday, Tim, and Kraig Adler. The Encyclopedia of Reptiles and Amphibians. New York, N.Y.: Facts on File, 1986.

MLA (9th ed.) Citation

Halliday, Tim, and Kraig Adler. The Encyclopedia of Reptiles and Amphibians. Facts on File, 1986.