Siena : An illustrated guide book / Aldo Lusini ; Sandro Chierichetti ; translated by Googie Maraventano - Siena ; Milano ; Roma : S. n., 1959. - 206 p. : text ; ill. ; 1 map ; 15 cm. - 7.034.1+71+73/76+75.055 . Universal Decimal Class. No.: 7.034.1+71+73/76+75.055