Hawkins,Mike. (1997). Social Darwinism in European and American thought 1860-1945: Nature as model and nature as threat. Cambridge university press.
Dyfyniad Arddull ChicagoHawkins,Mike. Social Darwinism in European and American Thought 1860-1945: Nature as Model and Nature as Threat. Cambridge, New York: Cambridge university press, 1997.
Dyfyniad MLAHawkins,Mike. Social Darwinism in European and American Thought 1860-1945: Nature as Model and Nature as Threat. Cambridge university press, 1997.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.