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.
Lua i Stíl Chicago (17ú heag.)Toscano, 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.
Lua MLA (9ú heag.)Toscano, 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
