@book{26409,
	author = {Iowa State University. Ames. Statistical Laboratory},
	title = {Annual report, 19 -},
	publisher = {Iowa State University. Statistical Laboratory,},
	year = {19 -},
	address = {Ames :},
	note = {La biblioteca tiene: 1974, 1976-77, 1980-81, 1981-82, 1983-84, 1984-85, 1986-87, 1988, 1988-89, 1989-90, 1991-92, 1993-94, 1994-95, 1995-96}
}