@book{48423,
	author = {Ballesteros Beretta, Antonio. and Cortesão, Jaime},
	title = {Génesis del descubrimiento},
	publisher = {Salvat Editores},
	year = {[1961, c1947]},
	series = {Historia de América y de los pueblos americanos},
	address = {Barcelona},
	edition = {2a ed. corr. y aumentada.}
}