@book{47980,
	author = {Hufton, Olwen H., and Valero, Fernando,},
	title = {Europa :},
	publisher = {Siglo XXI España,},
	year = {[2017]},
	series = {Historia de Europa ;},
	address = {Tres Cantos, Madrid, España :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/50448/}
}