@book{176767,
	author = {Villegas de Gante, Abraham Zacarias},
	title = {Sitema leche-queso en Chiapas (Costa, Villaflores y Ocosingo) /},
	publisher = {El autor,},
	year = {2009},
	address = {México :},
	note = {Grado: 6° año}
}