Παραπομπή APA

Hughes, J. D. (1975). Ecology in ancient civilizations. Albuquerque, NM: University of New Mexico Press.

Παραπομπή Chicago Style

Hughes, J. Donald. Ecology in Ancient Civilizations. Albuquerque, NM: University of New Mexico Press, 1975.

Παραπομπή MLA

Hughes, J. Donald. Ecology in Ancient Civilizations. Albuquerque, NM: University of New Mexico Press, 1975.

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