Παραπομπή σε μορφή APA (7η εκδ.)

McKenzie, R. D., & Hawley, A. H. (1968). Roderick D. McKenzie on human ecology: Selected writings. University of Chicago Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

McKenzie, Roderick Duncan, και Amos Henry Hawley. Roderick D. McKenzie on Human Ecology: Selected Writings. Chicago: University of Chicago Press, 1968.

Παραπομπή σε μορφή MLA (9th εκδ.)

McKenzie, Roderick Duncan, και Amos Henry Hawley. Roderick D. McKenzie on Human Ecology: Selected Writings. University of Chicago Press, 1968.