@book{104,
	author = {Underwood, Eric J. and Commonwealth Agricultural Bureaux.},
	title = {Los minerales en la nutrición del ganado},
	publisher = {Acribia,},
	year = {1983},
	address = {Zaragoza :},
	note = {Trad. de : The mineral nutrition livestock, de la 2 ed. de 1981}
}