Παραπομπή σε μορφή APA (7η εκδ.)

Triana, M. I. R. (2012). Estimation and analysis of expenditure and income of the floating population of undergraduate university student in the city of Tunja, Colombia. Universidad Pedagógica y Tecnológica de Colombia.

Παραπομπή σε μορφή Chicago (17η εκδ.)

Triana, María Isabel Rojas. Estimation and Analysis of Expenditure and Income of the Floating Population of Undergraduate University Student in the City of Tunja, Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2012.

Παραπομπή σε μορφή MLA (9th εκδ.)

Triana, María Isabel Rojas. Estimation and Analysis of Expenditure and Income of the Floating Population of Undergraduate University Student in the City of Tunja, Colombia. Universidad Pedagógica y Tecnológica de Colombia, 2012.