APA (7 ম সংস্করণ) উদ্ধৃতি

Vallejo Zamudio, L. E. (2015). The fall in oil prices and its impact on the Colombian economy. Universidad Pedagógica y Tecnológica de Colombia.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Vallejo Zamudio, Luis E. The Fall in Oil Prices and Its Impact on the Colombian Economy. Universidad Pedagógica y Tecnológica de Colombia, 2015.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Vallejo Zamudio, Luis E. The Fall in Oil Prices and Its Impact on the Colombian Economy. Universidad Pedagógica y Tecnológica de Colombia, 2015.