Παραπομπή σε μορφή APA (7η εκδ.)

Pojman, L. P., & Pojman, P. (2012). Environmental ethics : readings in theory and application: Readings in theory and application (6th ed.). Wadsworth.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pojman, Louis P., και Paul Pojman. Environmental Ethics : Readings in Theory and Application: Readings in Theory and Application. 6th ed. Boston, Mass.: Wadsworth, 2012.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pojman, Louis P., και Paul Pojman. Environmental Ethics : Readings in Theory and Application: Readings in Theory and Application. 6th ed. Wadsworth, 2012.