APA (7 वां संस्करण) प्रशस्ति पत्र
Ring, N. J. (2012). The problem South: Region, empire, and the new liberal state, 1880-1930. University of Georgia Press.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्र
Ring, Natalie J. The Problem South: Region, Empire, and the New Liberal State, 1880-1930. Athens: University of Georgia Press, 2012.
एमएलए (9वां संस्करण) प्रशस्ति पत्र
Ring, Natalie J. The Problem South: Region, Empire, and the New Liberal State, 1880-1930. University of Georgia Press, 2012.
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