Columbia subject headings:
Art, French--History--20th century.
Art, German--History--20th century.
Art--France--History.
Art--Germany--History.
Harvard subject headings:
Art, French--History--20th century.
Art, German--History--20th century.
Art--France--History
Art--Germany--History
Princeton subject headings:
Art criticism--France--History--20th century.
Art criticism--Germany--History--20th century.