@book{169628,
	author = {Johnson, Robert and  Romo Muñoz, Jorge Humberto, tr. },
	title = {Estadística elemental: lo esencial  /},
	publisher = {Cengage Learning,},
	year = {2011},
	address = {México  :},
	edition = {10a ed.},
	note = {Contiene formulario al final.}
}