@Book{BDCM2009000253, title = "Madrid", author = "Rodrig\'{a}\~{n}ez, Celedonio", publisher = "[Madrid?] : [s.n.]", editor = "[s.n.]", URL = "https://bibliotecavirtualmadrid.comunidad.madrid/bvmadrid_publicacion/es/consulta/registro.do?id=253", year = "1890", }