@Book{BAB20080000523, title = "Estudio m\'{e}dico topogr\'{a}fico de la ciudad de Calahorra", author = "Hita y Comas, Sotero", publisher = "Calahorra : Andr\'{e}s C. Ciriano", editor = "Andr\'{e}s C. Ciriano", URL = "http://bibliotecavirtual.larioja.org/bvrioja/es/consulta/registro.do?id=52", year = "1886", }