@book{282267,
	author = {Pérez Alcázar, Jorge Augusto,},
	title = {Nivelación en matemáticas básicas /},
	publisher = {Universidad EAN,},
	year = {2016.},
	address = {Bogotá, D.C. :},
	url = {https://www.digitaliapublishing.com/a/133043/}
}