Campbell, B. (1995). Human ecology: The story of our place in nature from prehistory to the present (2nd edition.). Aldine De Gruyter.
Παραπομπή σε μορφή Chicago (17η εκδ.)Campbell, Bernard. Human Ecology: The Story of Our Place in Nature from Prehistory to the Present. 2nd edition. New York: Aldine De Gruyter, 1995.
Παραπομπή σε μορφή MLA (8th εκδ.)Campbell, Bernard. Human Ecology: The Story of Our Place in Nature from Prehistory to the Present. 2nd edition. Aldine De Gruyter, 1995.
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