Napier, P. (1976). Elephants: And other land giants. Time-Life Films.
Cita Chicago (17th ed.)Napier, Prue. Elephants: And Other Land Giants. Time-Life Films, 1976.
Cita MLA (9th ed.)Napier, Prue. Elephants: And Other Land Giants. Time-Life Films, 1976.
Atenció: Aquestes cites poden no estar 100% correctes.