Παραπομπή σε μορφή APA (7η εκδ.)

Hawkins, M. (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: 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.