@book{20780,
	author = {Aitken, Alexander C. and López Galí, E.},
	title = {Estadística matemática / },
	publisher = {Dossat, },
	year = {19--?},
	series = {University Mathematical texts},
	address = {Madrid, etc. : },
	note = {Versión de la 7ª ed. inglesa.}
}