@book{25845,
	author = {Villarroel González, Óscar,},
	title = {El rey y el papa :},
	publisher = {Sílex,},
	year = {c2009.},
	series = {Serie Historia medieval},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/1276/}
}