Columbia subject headings:
Art brut.
Art, Modern--19th century.
Art, Modern--20th century.
Primitivism in art.
Harvard subject headings:
Painting, Modern--19th century
Painting, Modern--20th century
Primitivism in art.
Princeton subject headings:
Art brut.
Art, Modern--19th century.
Art, Modern--20th century.
Primitivism in art.