@book{32889,
	author = {Barrio García, Salvador del,},
	title = {Venta personal :},
	publisher = {Universitat Oberta de Catalunya,},
	year = {2012.},
	series = {Manuales ;},
	address = {Barcelona :},
	edition = {Primera edición en lengua castellana. },
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/20595/}
}