Trochez Gonzalez, J., Valencia Cárdenas, M., & Salazar Uribe, J. C. (2018). The Effects of the Free Trade Agreement with the United States and the Prices of Colombian Corn. Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रTrochez Gonzalez, Johanna, Marisol Valencia Cárdenas, और Juan Carlos Salazar Uribe. The Effects of the Free Trade Agreement with the United States and the Prices of Colombian Corn. Universidad Pedagógica y Tecnológica de Colombia, 2018.
एमएलए (9वां संस्करण) प्रशस्ति पत्रTrochez Gonzalez, Johanna, et al. The Effects of the Free Trade Agreement with the United States and the Prices of Colombian Corn. Universidad Pedagógica y Tecnológica de Colombia, 2018.
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