Παραπομπή σε μορφή APA (7η εκδ.)

Pimm, S. L. (1991). The balance of nature ?: Ecological issues in the conservation of species and communities. The university of Chicago Press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Pimm, Stuart L. The Balance of Nature ?: Ecological Issues in the Conservation of Species and Communities. Chicago and London: The university of Chicago Press, 1991.

Παραπομπή σε μορφή MLA (8th εκδ.)

Pimm, Stuart L. The Balance of Nature ?: Ecological Issues in the Conservation of Species and Communities. The university of Chicago Press, 1991.