Columbia subject headings:
Enslaved persons--Arab countries--History.
Enslaved persons--Italy--History.
Slavery--Arab countries--History.
Slavery--Italy--History.
Harvard subject headings:
Slavery--Arab countries--History.
Slavery--Italy--History.
Slaves--Arab countries--History.
Slaves--Italy--History.
Princeton subject headings:
Muslims--Italy--History.
Slavery--Italy--History.