Cita APA (7a ed.)

Cunningham, C., & Berger, J. (1997). Horn of darkness: Rhinos on the edge. Oxford University Press.

Cita Chicago Style (17a ed.)

Cunningham, Carol, y Joel Berger. Horn of Darkness: Rhinos on the Edge. New York: Oxford University Press, 1997.

Cita MLA (9a ed.)

Cunningham, Carol, y Joel Berger. Horn of Darkness: Rhinos on the Edge. Oxford University Press, 1997.