Columbia subject headings:
Harvard subject headings:
City and town life--Switzerland--Zurich.
Equality--Switzerland--Zurich.
Zurich (Switzerland)--History.
Zurich (Switzerland)--Social conditions.
Princeton subject headings:
City and town life--Switzerland--Zurich.
Equality--Switzerland--Zurich.
Zurich (Switzerland)--History.
Zurich (Switzerland)--Social conditions.