@book{9840,
	author = {Palacio Real (Madrid).  and López Serrano, Matilde. and Patrimonio Nacional (España)},
	title = {Catálogo de la Real Biblioteca. X, Incunables / },
	publisher = {Patrimonio Nacional, },
	year = {1989.},
	address = {Madrid : },
	note = {Indices.}
}