Columbia subject headings:
Klee, Paul, 1879-1940.
Harvard subject headings:
Klee, Paul, 1879-1940--Exhibitions.
Princeton subject headings:
Art--Collectors and collecting--United States--History--20th century--Exhibitions.
Klee, Paul, 1879-1940--Exhibitions.
Klee, Paul, 1879-1940--Influence--Exhibitions.