APA (7th ed.) Citation

Ketchum, R. M. (1970). The secret life of the forest. American Heritage Press.

Chicago Style (17th ed.) Citation

Ketchum, Richard M. The Secret Life of the Forest. New York: American Heritage Press, 1970.

MLA (9th ed.) Citation

Ketchum, Richard M. The Secret Life of the Forest. American Heritage Press, 1970.