@book{88190,
	author = {Contreras Carrillo, Jesús Cristóbal, and Zegalbo Martín, Joaquín,},
	title = {Valera D. Juan :},
	publisher = {Vision Net,},
	year = {[2011]},
	address = {Madrid (España) :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/89247/}
}