Columbia subject headings:
Art and society--Congresses.
Conceptual art--United States--Congresses.
Huebler, Douglas--Criticism and interpretation--Congresses.
Harvard subject headings:
Conceptual art--United States
Huebler, Douglas--Criticism and interpretation.
Princeton subject headings:
Conceptual art--United States.
Huebler, Douglas--Criticism and interpretation.
Nineteen seventies.
Nineteen sixties.