@book{177312,
	author = {Little, Thomas M. and Hills, F. Jackson, coaut. },
	title = {Métodos estadísticos para la investigación en la agricultura   /},
	publisher = { Trillas,},
	year = {1989},
	address = {México  :},
	edition = {2a ed.},
	note = {Título original: Statistical methods in agricultural research}
}