00549cac0 22001811 450 LAEC0002023020110502105712.020110502f0000 |||||ita|0103 baGBb Cambridge Studies in Islamic CivilizationITUNISOB20110502RICALAEC00020230C 121 Collana SBNCCambridge Studies in Islamic Civilization1695879UNISOB001E6002000028292001 Arabic administration in Norman Sicilythe Royal Diwan