Columbia subject headings:
Social classes--Switzerland--History--20th century.
Social classes--Switzerland--History--21st century.
Switzerland--Economic conditions--1945-
Switzerland--Social conditions--1945-
Harvard subject headings:
Social classes--Switzerland--History--20th century.
Social classes--Switzerland--History--21st century.
Switzerland--Economic conditions--1945-
Switzerland--Social conditions--1945-
Princeton subject headings:
Social classes--Switzerland--History--20th century.
Social classes--Switzerland--History--21st century.
Switzerland--Economic conditions--1945-
Switzerland--Social conditions--1945-