Παραπομπή σε μορφή APA (7η εκδ.)

Barrera Varela, P. J. (2020). Two effects of COVID-19 in Colombia: Deepening inequality and a return to hyperpresidentialism. Universidad Pedagógica y Tecnológica de Colombia.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Barrera Varela, Pedro Javier. Two Effects of COVID-19 in Colombia: Deepening Inequality and a Return to Hyperpresidentialism. Universidad Pedagógica y Tecnológica de Colombia, 2020.

Παραπομπή σε μορφή MLA (9th εκδ.)

Barrera Varela, Pedro Javier. Two Effects of COVID-19 in Colombia: Deepening Inequality and a Return to Hyperpresidentialism. Universidad Pedagógica y Tecnológica de Colombia, 2020.