@book{30910,
	author = {Torres Sánchez, Rafael.},
	title = {La llave de todos los tesoros :},
	publisher = {Sílex,},
	year = {2012.},
	series = {Sílex universidad.},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/16910/}
}