@book{83813,
	author = {Menéndez Pidal, Ramón,},
	title = {De primitiva lírica española y antigua épica.},
	publisher = {Espasa-Calpe, S.A.},
	year = {[1968]},
	series = {Coleccion Austral},
	address = {Madrid},
	edition = {[2. ed.]}
}