Hardesty, D. L. (1977). Ecological anthropology. John Wiley.
Lua i Stíl Chicago (17ú heag.)Hardesty, Donald L. Ecological Anthropology. New York: John Wiley, 1977.
Lua MLA (9ú heag.)Hardesty, Donald L. Ecological Anthropology. John Wiley, 1977.
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