Columbia subject headings:
Childishness--Exhibitions.
Children in art--Exhibitions.
Klee, Paul, 1879-1940--Exhibitions.
Harvard subject headings:
Infants in art.
Klee, Paul, 1879-1940--Exhibitions.
Klee, Paul, 1879-1940--Themes, motives.
Princeton subject headings:
Children in art--Exhibitions.
Klee, Paul, 1879-1940--Exhibitions.