Παραπομπή σε μορφή APA (7η εκδ.)

Hawkins,Mike. (1997). Social Darwinism in European and American thought 1860-1945: Nature as model and nature as threat. Cambridge university press.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Hawkins,Mike. Social Darwinism in European and American Thought 1860-1945: Nature as Model and Nature as Threat. Cambridge, New York: Cambridge university press, 1997.

Παραπομπή σε μορφή MLA (9th εκδ.)

Hawkins,Mike. Social Darwinism in European and American Thought 1860-1945: Nature as Model and Nature as Threat. Cambridge university press, 1997.