Columbia subject headings:
Greek drama--History and criticism--Congresses.
Greek drama--Political aspects--Congresses.
Politics and literature--Greece--History--Congresses.
Theater--Greece--History--To 500--Congresses.
Harvard subject headings:
Greek drama--History and criticism--Congresses.
Greek drama--Political aspects--Congresses.
Politics and literature--Greece--History--Congresses.
Theater--Greece--History--To 500--Congresses.
Princeton subject headings:
Greek drama--History and criticism--Congresses.
Politics and literature--Greece--Congresses.
Politics in literature--Congresses.