@book{55791,
	author = {Dhondt, Jan. and Esteban Drake, Antonio.},
	title = {La Alta Edad Media / },
	publisher = {Siglo XXI, },
	year = {[1974]},
	series = {Historia universal. Siglo XXI ; },
	address = {[Madrid] : },
	edition = {[4ª ed.].}
}