Style de citation APA (7e éd.)

Freyfogle, E. T. (2006). Why conservation is failing and how it can regain ground. Yale University Press.

Style de citation Chicago (17e éd.)

Freyfogle, Eric T. Why Conservation Is Failing and How It Can Regain Ground. New Haven: Yale University Press, 2006.

Style de citation MLA (8e éd.)

Freyfogle, Eric T. Why Conservation Is Failing and How It Can Regain Ground. Yale University Press, 2006.