Columbia subject headings:
Greek drama (Tragedy)--History and criticism--Congresses.
Greek drama--History and criticism--Congresses.
Greek drama--Modern presentation--Congresses.
Theater--Greece--History--Congresses.
Harvard subject headings:
Greek drama (Tragedy)--History and criticism--Congresses.
Greek drama--History and criticism--Congresses.
Greek drama--Modern presentation--Congresses.
Theater--Greece--History--Congresses.
Princeton subject headings:
Greek drama (Tragedy)--History and criticism--Congresses.
Greek drama--History and criticism--Congresses.
Greek drama--Modern presentation--Congresses.
Theater--Greece--History--Congresses.