Columbia subject headings:
Theater--Europe--History--20th century--Congresses.
Theater--Greece--History--20th century--Congresses.
Theaters--Stage-setting and scenery--Greece--History--20th century--Congresses.
Harvard subject headings:
Princeton subject headings:
Papandreou, Nikēphoros, 1941-
Theater--Europe--History--20th century--Congresses.
Theater--Greece--History--20th century--Congresses.
Theaters--Stage-setting and scenery--Greece--History--20th century--Congresses.