Columbia subject headings:
Greece--Antiquities--Congresses.
Greece--Commerce--History--Congresses.
Greece--Economic conditions--To 146 B.C.--Congresses.
Harvard subject headings:
Economics, Prehistoric--Greece--Congresses.
Greece--Antiquities--Congresses.
Princeton subject headings:
Commerce, Prehistoric--Greece--Congresses.
Economics, Prehistoric--Greece--Congresses.
Greece--Antiquities--Congresses.