Sayre, A. P. (1994). Tropical Rain Forest. New York: Twenty-First Century Books.
Chicago Style aipamenaSayre, April Pulley. Tropical Rain Forest. New York: Twenty-First Century Books, 1994.
MLA aipamenaSayre, April Pulley. Tropical Rain Forest. New York: Twenty-First Century Books, 1994.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.