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.
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