Παραπομπή APA

Richards, P. W. (1970). life of the jungle. McGraw-Hill.

Παραπομπή Chicago Style

Richards, Paual W. Life of the Jungle. New York: McGraw-Hill, 1970.

Παραπομπή MLA

Richards, Paual W. Life of the Jungle. McGraw-Hill, 1970.