Columbia subject headings:
Lobbying--Switzerland--History--20th century.
Pressure groups--Switzerland--History--20th century.
Switzerland--Economic conditions--1918-1945.
Harvard subject headings:
Lobbying--Switzerland--History--20th century.
Pressure groups--Switzerland--History--20th century.
Switzerland--Economic conditions--1918-1945.
Princeton subject headings:
Lobbying--Switzerland--History--20th century.
Pressure groups--Switzerland--History--20th century.
Switzerland--Economic conditions--1918-1945.