@book{7647,
	author = {Spiegel, Murray R.},
	title = {Schaum´s outlines of probability and statistics /},
	publisher = {McGraw Hill, },
	year = {c2013},
	address = {New York, NY :},
	edition = {4 ed.},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/8354.pdf}
}