@book{21138,
	author = {Guerra Bustillo, Caridad W. and e-libro, Corp.},
	title = {Estadística},
	publisher = {Editorial Félix Varela,},
	year = {2003.},
	address = {Ciudad de la Habana :},
	edition = {1a. ed., 2a. reim.},
	url = {https://elibro.net/ereader/politecnicointernacional/71785}
}