Cita APA (7a ed.)

SIMMONS, I. G. (1981). The Ecology of natural resources. Edward Arnold.

Cita Chicago Style (17a ed.)

SIMMONS, I. G. The Ecology of Natural Resources. London: Edward Arnold, 1981.

Cita MLA (9a ed.)

SIMMONS, I. G. The Ecology of Natural Resources. Edward Arnold, 1981.