@book{93451,
	author = {Vega, José Manuel, and Herrera, Angel María,},
	title = {Todos somos vendedores :},
	publisher = {Libros de Cabecera,},
	year = {[2012]},
	address = {Barcelona :},
	edition = {1a edición.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/110919/}
}