Cita APA (7th ed.)

DiSilvestro, R. L., Palmer, C. N., & Chichester, P. (1991). The African elephant: Twilight in Eden. Wiley.

Cita Chicago (17th ed.)

DiSilvestro, Roger L., Christopher N. Palmer, i Page Chichester. The African Elephant: Twilight in Eden. New York: Wiley, 1991.

Cita MLA (8th ed.)

DiSilvestro, Roger L., et al. The African Elephant: Twilight in Eden. Wiley, 1991.