@book{93682,
	author = {López Estrada, Francisco,},
	title = {Introducción a la literatura medieval española / },
	publisher = {Gredos, },
	year = {1979.},
	series = {Biblioteca románica hispánica. III. Manuales ; },
	address = {Madrid : },
	edition = {4ª ed. renov.}
}