Columbia subject headings:
Fisheries--Social aspects--Switzerland--Zurich, Lake of.
Zurich, Lake of, Region (Switzerland)--Social life and customs.
Harvard subject headings:
Fisheries--Social aspects--Switzerland--Zurich, Lake of.
Zurich, Lake of, Region (Switzerland)--Social life and customs.
Princeton subject headings:
Fisheries--Social aspects--Switzerland--Zurich, Lake of.
Zurich, Lake of, Region (Switzerland)--Social life and customs.