APA (7th ed.) Citation

Mattison, C. (1987). Frogs and toads of the world. Facts on File.

Chicago Style (17th ed.) Citation

Mattison, Christopher. Frogs and Toads of the World. New York, N.Y.: Facts on File, 1987.

MLA (9th ed.) Citation

Mattison, Christopher. Frogs and Toads of the World. Facts on File, 1987.