Columbia subject headings:
Zurich (Switzerland : Canton)--Economic conditions.
Zurich (Switzerland : Canton)--Politics and government.
Zurich (Switzerland)--Economic conditions.
Zurich (Switzerland)--Politics and government.
Harvard subject headings:
Zurich (Switzerland : Canton)--Economic conditions.
Zurich (Switzerland : Canton)--Politics and government.
Zurich (Switzerland)--Economic conditions.
Zurich (Switzerland)--Politics and government.
Princeton subject headings:
Zurich (Switzerland : Canton)--Economic conditions.
Zurich (Switzerland : Canton)--Politics and government.
Zurich (Switzerland)--Economic conditions.
Zurich (Switzerland)--Politics and government.