@book{52214,
	author = {Díaz Salcedo, Juan Manuel. and e-libro, Corp.},
	title = {Curso de Excel},
	publisher = {Instituto Politécnico Nacional,},
	year = {2003.},
	address = {México :},
	url = {https://elibro.net/ereader/politecnicointernacional/101727}
}