Barnes, H. E. (1948). Historical sociology: Its origins and development. Philosophical Library.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रBarnes, Harry Elmer. Historical Sociology: Its Origins and Development. New York: Philosophical Library, 1948.
एमएलए (9वां संस्करण) प्रशस्ति पत्रBarnes, Harry Elmer. Historical Sociology: Its Origins and Development. Philosophical Library, 1948.
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