Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.