@book{76157,
	author = {Cramer, Gisela,},
	title = {¡Américas unidas! :},
	publisher = {Iberoamericana ;},
	year = {2012.},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/56904/}
}