Columbia subject headings:
Wehrlin, Robert, 1903-1964--Exhibitions.
Harvard subject headings:
Artists--Switzerland--20th century--Exhibitions.
Expressionism--20th century--Exhibitions.
Wehrlin, Robert, 1903-1964--Exhibitions.
Princeton subject headings:
Artists--Switzerland--20th century--Exhibitions.
Expressionism--20th century--Exhibitions.
Wehrlin, Robert, 1903-1964--Exhibitions.