Columbia subject headings:
Art, Modern--20th century--Political aspects.
Art, Modern--20th century.
Collage--History.
Collage--Influence.
Collage--Technique.
Harvard subject headings:
Art, Modern--20th century
Collage
Princeton subject headings:
Art, Modern--20th century--Political aspects.
Art, Modern--20th century.
Collage--History.
Collage--Influence.
Collage--Technique.