Columbia subject headings:
Cairo Genizah.
Jews--Italy--Sicily--History--Sources.
Sicily (Italy)--Ethnic relations--History--Sources.
Harvard subject headings:
Cairo Genizah.
Jews--Italy--Sicily--History--Sources.
Sicily (Italy)--Ethnic relations--History--Sources.
Princeton subject headings:
Jews--Italy--Sicily--History--Sources.
Sicily (Italy)--Ethnic relations--Sources.