Παραπομπή σε μορφή APA (7η εκδ.)

Schmidtz, D., & Willott, E. (2002). Environmental ethics: What really matters, what really works. Oxford University Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Schmidtz, David, και Elizabeth Willott. Environmental Ethics: What Really Matters, What Really Works. New York: Oxford University Press, 2002.

Παραπομπή σε μορφή MLA (9th εκδ.)

Schmidtz, David, και Elizabeth Willott. Environmental Ethics: What Really Matters, What Really Works. Oxford University Press, 2002.