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.