Columbia subject headings:
Art appreciation--Congresses.
Art, Modern--20th century--Congresses.
Installations (Art)--Congresses.
Theater audiences--Congresses.
Harvard subject headings:
Art appreciation--Congresses.
Art, Modern--20th century--Congresses
Installations (Art)--Congresses.
Theater audiences--Congresses.
Princeton subject headings:
Art appreciation--Congresses.
Art, Modern--20th century--Congresses.
Installations (Art)--Congresses.
Theater audiences--Congresses.