Columbia subject headings:
Harvard subject headings:
Mass media and theater--Congresses.
Theater and society--Congresses.
Theater--Philosophy--Congresses.
Theaters--Stage-setting and scenery--Congresses.
Princeton subject headings:
Mass media and theater--Congresses.
Theater and society--Congresses.
Theater--Philosophy--Congresses.
Theaters--Stage-setting and scenery--Congresses.