Columbia subject headings:
Arabs--Italy--Sicily.
Hohenstaufen, House of.
Normans--Italy--Sicily.
Sicily (Italy)--History.
Sicily (Italy)--Social life and customs.
Harvard subject headings:
Arabs--Italy--Sicily.
Hohenstaufen, House of.
Normans--Italy--Sicily.
Sicily (Italy)--History
Sicily (Italy)--Social life and customs
Princeton subject headings:
Arabs--Italy--Sicily.
Hohenstaufen, House of.
Normans--Italy--Sicily.
Sicily (Italy)--History.
Sicily (Italy)--Social life and customs.