Valencia Llano, A. (2013). Poor farmers and lords of the land migrations to south Antioquia, Colombia 1800-1900. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रValencia Llano, Albeiro. Poor Farmers and Lords of the Land Migrations to South Antioquia, Colombia 1800-1900. Universidad Pedagógica y Tecnológica de Colombia, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रValencia Llano, Albeiro. Poor Farmers and Lords of the Land Migrations to South Antioquia, Colombia 1800-1900. Universidad Pedagógica y Tecnológica de Colombia, 2013.
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