@book{35338,
	author = {Freund, John E.},
	title = {Estadistica para la Administración con enfoque moderno /},
	publisher = {Prentice Hall Hispanoamericana,},
	year = {1990.},
	address = {Mexico :},
	note = {Incluye indice -- Titulo original. Elementary business statistics, the modern approach -- Faltan paginas de la 243-250.}
}