Toscano, O. M. (2013). The two governments Alfonso Lopez: State and economic and social reforms in Colombia (1934-1938, 1942-1945). Universidad Pedagógica y Tecnológica de Colombia.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रToscano, Oliver Mora. The Two Governments Alfonso Lopez: State and Economic and Social Reforms in Colombia (1934-1938, 1942-1945). Universidad Pedagógica y Tecnológica de Colombia, 2013.
एमएलए (9वां संस्करण) प्रशस्ति पत्रToscano, Oliver Mora. The Two Governments Alfonso Lopez: State and Economic and Social Reforms in Colombia (1934-1938, 1942-1945). Universidad Pedagógica y Tecnológica de Colombia, 2013.
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