@book{30811,
	author = {Berceo, Gonzalo de,},
	title = {Del sacrificio de la misa /},
	publisher = {www.Linkgua.com,},
	year = {2011. },
	series = {Extasis.},
	address = {Barcelona :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/16735/}
}