@book{1378,
	author = {Heer, Friedrich and Luzon Sacristan, Manuel ftr.},
	title = {El mundo medieval},
	publisher = {Guadarrama},
	year = {1963},
	series = {Historia de la cultura Guadarrama},
	address = {Madrid},
	note = {Contiene índice onómastico p. 495-505}
}