Παραπομπή σε μορφή APA (7η εκδ.)

McDonnell, M. J., & Pickett, S. T. (1997). Humans as components of ecosystems: The ecology of subtle human effects and polpulated areas. Springer.

Παραπομπή σε μορφή Chicago (17η εκδ.)

McDonnell, Mark J., και Steward T. Pickett. Humans as Components of Ecosystems: The Ecology of Subtle Human Effects and Polpulated Areas. New York: Springer, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

McDonnell, Mark J., και Steward T. Pickett. Humans as Components of Ecosystems: The Ecology of Subtle Human Effects and Polpulated Areas. Springer, 1997.