Columbia subject headings:
Harvard subject headings:
Audiences--Switzerland--Public opinion.
Sociology--Research--Switzerland.
Swiss--Switzerland--Public opinion.
Switzerland--History--20th century--Exhibitions.
Switzerland--History--20th century.
Princeton subject headings:
Audiences--Switzerland--Public opinion.
Swiss--Switzerland--Public opinion.
Switzerland--History--20th century--Exhibitions.
Switzerland--History--20th century.