@book{109146,
	author = {I. Koeslag, Johan H},
	title = {Porcinos /},
	publisher = {Trillas,},
	year = {2016.},
	series = {Manuales para educación agropecuaria. Producción animal},
	address = {México, D.F. :},
	edition = {5 ed.}
}