@book{120,
	author = {Trillas.},
	title = {Bovinos de carne /},
	publisher = {Trillas,},
	year = {1990.},
	series = {Manuales para la educación agropecuaria. Area: Producción animal (rojo) ;},
	address = {México :},
	edition = {2ª ed.}
}