Cita APA (7th ed.)

Simmons, I. G. (1974). The ecology of natural resources. Wiley.

Cita Chicago (17th ed.)

Simmons, Ian Gordon. The Ecology of Natural Resources. New York: Wiley, 1974.

Cita MLA (9th ed.)

Simmons, Ian Gordon. The Ecology of Natural Resources. Wiley, 1974.