Toscano, O. M. (2014). The 1935 tax reform and the strengthening of direct taxation in Colombia. Universidad Pedagógica y Tecnológica de Colombia.
Chicago Style (17. basım) AtıfToscano, Oliver Mora. The 1935 Tax Reform and the Strengthening of Direct Taxation in Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2014.
MLA (9th ed.) AtıfToscano, Oliver Mora. The 1935 Tax Reform and the Strengthening of Direct Taxation in Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2014.
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