Columbia subject headings:
Harvard subject headings:
Business enterprises--Switzerland--History--20th century--Congresses.
Corporations--Switzerland--History--20th century--Congresses.
Switzerland--Economic conditions--20th century--Congresses.
World War, 1914-1918--Economic aspects--Switzerland--Congresses.
Princeton subject headings:
Business enterprises--Switzerland--History--20th century--Congresses.
World War, 1914-1918--Economic aspects--Switzerland--Congresses.