Παραπομπή σε μορφή APA (7η εκδ.)

Orr, D. W. (1992). Ecological literacy: Education and the transition to a postmodern world. State University of New York Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Orr, David W. Ecological Literacy: Education and the Transition to a Postmodern World. New York: State University of New York Press, 1992.

Παραπομπή σε μορφή MLA (9th εκδ.)

Orr, David W. Ecological Literacy: Education and the Transition to a Postmodern World. State University of New York Press, 1992.