Columbia subject headings:
Art and society--Europe--History--20th century.
Art and society--United States--History--20th century.
Art, American--20th century.
Art, European--20th century.
Art--Political aspects--Europe--History--20th century.
Art--Political aspects--United States--History--20th century.
Harvard subject headings:
Art and society--Europe--History--20th century.
Art and society--United States--History--20th century
Art, American--20th century
Art, European--20th century
Art--Political aspects--Europe--History--20th century.
Art--Political aspects--United States--History--20th century.
Princeton subject headings: