Columbia subject headings:
Harvard subject headings:
Egypt--Commerce--Italy--Venice--History.
Egypt--Commerce--Yemen (Republic)--History.
Egypt--Commercial policy--History.
Egypt--Economic conditions--640-1517
Mamelukes--History
Mediterranean Sea--Commerce--History--To 1500.
Red Sea--Commerce--History--To 1500.
Sea-power--Egypt--History--To 1500.
Trade routes--Egypt--History--To 1500.
Venice (Italy)--Commerce--Egypt--History.
Yemen (Republic)--Commerce--Egypt--History.
Princeton subject headings:
Egypt--Commerce--Italy--Venice--History.
Egypt--Commerce--Yemen (Republic)--History.
Egypt--Commercial policy--History.
Egypt--Economic conditions--640-1517.
Mamelukes--History.
Mediterranean Sea--Commerce--History--To 1500.
Red Sea--Commerce--History--To 1500.
Sea-power--Egypt--History--To 1500.
Trade routes--Egypt--History--To 1500.
Venice (Italy)--Commerce--Egypt--History.
Yemen (Republic)--Commerce--Egypt--History.