Cita APA (7th ed.)
Schaller, G. B. (1988). The year of the gorilla. University of Chicago Press.
Cita Chicago (17th ed.)
Schaller, George B. The Year of the Gorilla. Chicago: University of Chicago Press, 1988.
Cita MLA (9th ed.)
Schaller, George B. The Year of the Gorilla. University of Chicago Press, 1988.
Atenció: Aquestes cites poden no estar 100% correctes.