Vallejo Zamudio, L. E. (2015). The fall in oil prices and its impact on the Colombian economy. Universidad Pedagógica y Tecnológica de Colombia.
Dyfyniad Arddull ChicagoVallejo Zamudio, Luis E. The Fall in Oil Prices and Its Impact on the Colombian Economy. Universidad Pedagógica y Tecnológica de Colombia, 2015.
Dyfyniad MLAVallejo Zamudio, Luis E. The Fall in Oil Prices and Its Impact on the Colombian Economy. Universidad Pedagógica y Tecnológica de Colombia, 2015.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.