@book{71621,
	author = {George, Pierre. and Villaseca, J. J.},
	title = {Geografía social del mundo / },
	publisher = {Oikos-Tau, },
	year = {[1971]},
	series = {Colección "Que sé" ; },
	address = {Barcelona : },
	edition = {[1ª ed.].}
}