@book{170041,
	author = {Villaseñor Castro, Amado and   Ramírez Valverde, Rodolfo, asesor},
	title = {Caracterización de la porcicultura en Distrito Federal  /},
	publisher = {El autor,},
	year = {2014},
	address = {México  :},
	url = {http://10.13.5.2/tesis/sist111038.pdf}
}