Columbia subject headings:
Harvard subject headings:
Arts, Modern--20th century
Avant-garde (Aesthetics)
Cage, John--Criticism and interpretation.
Duchamp, Marcel, 1887-1968--Criticism and interpretation.
Postmodernism.
Princeton subject headings:
Arts, Modern--20th century.
Avant-garde (Aesthetics)
Cage, John--Criticism and interpretation.
Duchamp, Marcel, 1887-1968--Criticism and interpretation.
Postmodernism.