Não informado. (1972). Peasant studies newsletter. University of Pittsburgh, Department of History.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रNão informado. Peasant Studies Newsletter. Pittsburgh, Pa: University of Pittsburgh, Department of History, 1972.
एमएलए (8वां संस्करण) प्रशस्ति पत्रNão informado. Peasant Studies Newsletter. University of Pittsburgh, Department of History, 1972.
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