APA (7th ed.) Citation

Simmons, I. G. (1981). The ecology of natural resources / I.G. Simmons (2nd ed.). Edward Arnold.

Chicago Style (17th ed.) Citation

Simmons, I. G. The Ecology of Natural Resources / I.G. Simmons. 2nd ed. London: Edward Arnold, 1981.

MLA (9th ed.) Citation

Simmons, I. G. The Ecology of Natural Resources / I.G. Simmons. 2nd ed. Edward Arnold, 1981.

Warning: These citations may not always be 100% accurate.