Columbia subject headings:
Harvard subject headings:
Space and time in art--Congresses.
Space in literature--Congresses.
Theater--History--Congresses.
Theater--Philosophy--Congresses.
Theater--Political aspects--Congresses.
Princeton subject headings:
Space and time in art--Congresses.
Space in literature--Congresses.
Theater--History--Congresses.
Theater--Philosophy--Congresses.
Theater--Political aspects--Congresses.