@book{24443,
	author = {Monroy Saldívar, Salvador. and e-libro, Corp.},
	title = {Estadística descriptiva},
	publisher = {Instituto Politécnico Nacional,},
	year = {2008.},
	address = {México :},
	url = {https://elibro.net/ereader/politecnicointernacional/74722}
}