Columbia subject headings:
Athens (Greece)--History--Congresses.
Greece--Politics and government--To 146 B.C.--Congresses.
Harvard subject headings:
Athens (Greece)--History--Congresses.
Democracy--Greece--Athens--History--To 1500--Congresses.
Greece--Politics and government--To 146 B.C.--Congresses.
Princeton subject headings:
Athens (Greece)--History--Congresses.
Greece--Politics and government--To 146 B.C.--Congresses.