Cita APA (7th ed.)
Cunningham, C., & Berger, J. (1997). Horn of darkness: Rhinos on the edge. Oxford University Press.
Cita Chicago (17th ed.)
Cunningham, Carol, i Joel Berger. Horn of Darkness: Rhinos on the Edge. New York: Oxford University Press, 1997.
Cita MLA (9th ed.)
Cunningham, Carol, i Joel Berger. Horn of Darkness: Rhinos on the Edge. Oxford University Press, 1997.
Atenció: Aquestes cites poden no estar 100% correctes.