@book{105435,
	author = {Posada Hernández, Gabriel Jaime,},
	title = {Ecuaciones lineal y cuadrática /},
	publisher = {Universidad Católica Luis Amigó,},
	year = {2012.},
	address = {Medellín, Antioquia, Colombia :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/155254/}
}