@book{12056,
	author = {Woller, Hans},
	title = {El siglo XX},
	publisher = {Siglo Veintiuno},
	year = {1986},
	series = {Historia Universal siglo XXI},
	address = {México, D.F.},
	edition = {1ª ed.},
	note = {Las notas se encuentran al final de la obra p. 285-300}
}