Engels, F., & Morgan, L. H. (1972). The origin of the family, private property, and the state. Pathfinder Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रEngels, Friedrich, और Lewis Henry Morgan. The Origin of the Family, Private Property, and the State. New York: Pathfinder Press, 1972.
एमएलए (9वां संस्करण) प्रशस्ति पत्रEngels, Friedrich, और Lewis Henry Morgan. The Origin of the Family, Private Property, and the State. Pathfinder Press, 1972.
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