Columbia subject headings:
Klee, Paul, 1879-1940--Criticism and interpretation.
Harvard subject headings:
Klee, Paul, 1879-1940--Criticism and interpretation.
Prints, German--19th century.
Prints, German--20th century.
Princeton subject headings:
Klee, Paul, 1879-1940--Criticism and interpretation.
Prints, German--19th century.
Prints, German--20th century.