Columbia subject headings:
Harvard subject headings:
Political parties--Switzerland--History.
Populism--Switzerland--History.
Right-wing extremists--Switzerland--History.
Switzerland--Emigration and immigration--Government policy--History.
Switzerland--Politics and government.
Princeton subject headings:
Political parties--Switzerland--History--20th century.
Populism--Switzerland.
Right-wing extremists--Switzerland.
Switzerland--Emigration and immigration--Political aspects.