@book{84590,
	author = {Menéndez Pidal, Ramón,},
	title = {España, eslabón entre la Cristiandad y el Islam.},
	publisher = {Espasa-Calpe},
	year = {[1968]},
	series = {Colección austral, no. 1280},
	address = {Madrid},
	edition = {2. ed.}
}