Παραπομπή σε μορφή APA (7η εκδ.)

VanDeVeer, D., & Pierce, C. ˆThe‰ environmental ethics and policy book: Philosophy, ecology, economics (3rd ed.). c2003.

Παραπομπή σε μορφή Chicago (17η εκδ.)

VanDeVeer, Donald, και Christine Pierce. ˆThe‰ Environmental Ethics and Policy Book: Philosophy, Ecology, Economics. 3rd ed. Belmont, CA: c2003.

Παραπομπή σε μορφή MLA (8th εκδ.)

VanDeVeer, Donald, και Christine Pierce. ˆThe‰ Environmental Ethics and Policy Book: Philosophy, Ecology, Economics. 3rd ed. c2003.