Columbia subject headings:
Harvard subject headings:
Athens (Greece)--Politics and government--Congresses.
Democracy--Greece--Athens--History--Congresses.
Social role--Greece--Athens--Congresses.
Social stratification--Greece--Athens--Congresses.
Princeton subject headings:
Athens (Greece)--Politics and government--Congresses.
Democracy--Greece--Athens--History--Congresses.
Social role--Greece--Athens--Congresses.
Social stratification--Greece--Athens--Congresses.