Παραπομπή σε μορφή APA (7η εκδ.)

Orr, D. W. (2004). Earth in mind: On education, environment, and the human prospect (10th ed.). Island Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Orr, David W. Earth in Mind: On Education, Environment, and the Human Prospect. 10th ed. Washington, DC: Island Press, 2004.

Παραπομπή σε μορφή MLA (9th εκδ.)

Orr, David W. Earth in Mind: On Education, Environment, and the Human Prospect. 10th ed. Island Press, 2004.