@book{33196,
	author = {Marcos Marín, Francisco.},
	title = {Los retos del español /},
	publisher = {Iberoamericana ;},
	year = {2006.},
	series = {Lengua y sociedad en el mundo hispánico =},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/21033/}
}