@book{27921,
	author = {Sobarzo, Alejandro},
	title = {Deber y conciencia, Nicolás Trist, el negociador norteamericano en la guerra del 47.},
	publisher = {F.C.E.,},
	year = {2012},
	series = {Historia},
	address = {México :},
	edition = {4}
}