APA (7. basım) Alıntı

Callicott, J. B., & Frodeman, R. (2009). Encyclopedia of Environmental Ethics and Philosophy. Macmillan Reference USA / Gale.

Chicago Style (17. basım) Atıf

Callicott, J. Baird, ve Robert Frodeman. Encyclopedia of Environmental Ethics and Philosophy. Detroit: Macmillan Reference USA / Gale, 2009.

MLA (9th ed.) Atıf

Callicott, J. Baird, ve Robert Frodeman. Encyclopedia of Environmental Ethics and Philosophy. Macmillan Reference USA / Gale, 2009.