@book{31737,
	author = {Ette, Ottmar.},
	title = {Worldwide :},
	publisher = {Iberoamericana ;},
	year = {2012.},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/18458/}
}