Columbia subject headings:
Initiative, Right of--Switzerland--Zurich (Canton)
Zurich (Switzerland : Canton)--Politics and government.
Harvard subject headings:
Initiative, Right of--Switzerland--Zurich (Canton)
Zurich (Switzerland : Canton)--Politics and government.
Princeton subject headings:
Initiative, Right of--Switzerland--Zürich (Canton).
Zurich (Switzerland : Canton)--Politics and government.