@book{7799,
	author = {Spiegel, Murray R. and Osuna Suarez, Jairo},
	title = {Teoría y problemas de probabilidad y estadística},
	publisher = {McGraw-Hill},
	year = {1976},
	address = {México :},
	url = {http://www.biblioeco.unsa.edu.ar/pmb/images/libros/L129367.jpg}
}