@book{85389,
	author = {Villarroel González, Óscar},
	title = {El Rey y el papa :},
	publisher = {Sílex Ediciones, },
	year = {2009},
	series = {Serie Historia Medieval},
	address = {[Madrid, España] :},
	url = {https://public.digitaliapublishing.com/a/1276}
}