Columbia subject headings:
Harvard subject headings:
Bakeries--Switzerland--Zurich--History.
Bread industry--Switzerland--Zurich--History.
Bread--Social aspects--Switzerland--Zurich--History.
Guilds--Switzerland--Zurich--History.
Zurich (Switzerland)--Civilization.
Princeton subject headings:
Bread industry--Switzerland--Zurich--History.
Bread--Social aspects--Switzerland--Zurich.
Zurich (Switzerland)--Economic conditions--History.
Zurich (Switzerland)--History.
Zurich (Switzerland)--Social conditions--History.