@book{18589,
	title = {Equis  / },
	publisher = {Corporación Unificada Nacional de Educación Superior,},
	year = {2015.},
	address = {Bogotá (Colombia) :},
	url = {https://drive.google.com/open?id=1k0RH2ASTKGMyhg8HAe2wTi4L33A_kFBV}
}