@book{12790,
	author = {Hays, William L. and Winkler, Robert L.},
	title = {Statistics},
	publisher = {Holt, Rinehart and Winston,},
	year = {1970},
	series = {International series in decision process},
	address = {New York :},
	note = {La biblioteca tiene : v.1 y v.2}
}