Columbia subject headings:
Galleys--Mediterranean Region--History.
Mediterranean Region--History, Naval.
Naval architecture--History.
Harvard subject headings:
Galleys--Mediterranean Region--History.
Mediterranean Region--History, Naval.
Naval architecture--History
Princeton subject headings:
Mediterranean Region--History, Naval.
Merchant ships--History.
Naval architecture--History.
Sailing ships--History.
Shipping--Mediterranean Region--History.
Ships, Medieval.