@book{65528,
	author = {Rojas Álvarez, Carlos Javier,},
	title = {Introducción a la proporción y a los vectores /},
	publisher = {Editorial Universidad del Norte,},
	year = {2021.},
	series = {Textos guía UN},
	address = {Barranquilla, Colombia :},
	url = {https://elibro.net/ereader/politecnicointernacional/185008}
}