@book{39757,
	author = {Leonardo Aurtenetxe, Jon Joseba, and Hormaechea, Ángel,},
	title = {Petronor :},
	publisher = {Universidad de Deusto,},
	year = {2014.},
	series = {Serie Maior ;},
	address = {Bilbao :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/37395/}
}