APA način citiranja (7. izdanje)
Freyfogle, E. T. (2006). Why conservation is failing and how it can regain ground. Yale University Press.
Čikaški stil citiranja (17. izdanje)
Freyfogle, Eric T. Why Conservation Is Failing and How It Can Regain Ground. New Haven: Yale University Press, 2006.
MLA način citiranja (9. izdanje)
Freyfogle, Eric T. Why Conservation Is Failing and How It Can Regain Ground. Yale University Press, 2006.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.