@book{32670,
	author = {Menéndez Pidal, Ramón,  and Muguruza, Pedro },
	title = {La España del Cid / },
	publisher = {Espasa - Calpe, },
	year = {1947.},
	series = {Obras de R. Menéndez ; },
	address = {Madrid : },
	edition = {4a ed.}
}