Columbia subject headings:
Mediterranean Region--Civilization.
Mediterranean Region--History--476-1517.
Mediterranean Region--History--To 476.
Harvard subject headings:
Civilization, Greco-Roman.
Greece--Commerce.
Greece--Economic conditions.
Mediterranean Region--Civilization--History--476-1517.
Mediterranean Region--Civilization--History--To 476.
Rome--Commerce.
Rome--Economic conditions.
Princeton subject headings:
Mediterranean Region--Civilization.
Mediterranean Region--History--476-1517.
Mediterranean Region--History--To 476.