@book{26903,
	author = {Arévalo Ovalle, Diego,},
	title = {Introducción a las matemáticas /},
	publisher = {Editorial Politécnico Grancolombiano,},
	year = {2012.},
	address = {Bogotá :},
	url = {https://elibro.net/ereader/politecnicointernacional/70987}
}