APA (7th ed.) Citation

Sayre, A. P. (1994). Tropical rain forest. Twenty-First Century Books.

Chicago Style (17th ed.) Citation

Sayre, April Pulley. Tropical Rain Forest. New York: Twenty-First Century Books, 1994.

MLA (9th ed.) Citation

Sayre, April Pulley. Tropical Rain Forest. Twenty-First Century Books, 1994.