APA (7th ed.) Citation

Ellen, R. F. (1982). Environment, subsistence and system: The ecology of small- scale social formations. Cambridge University Press.

Chicago Style (17th ed.) Citation

Ellen, R. F. Environment, Subsistence and System: The Ecology of Small- Scale Social Formations. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 1982.

MLA (9th ed.) Citation

Ellen, R. F. Environment, Subsistence and System: The Ecology of Small- Scale Social Formations. Cambridge University Press, 1982.