Columbia subject headings:
Harvard subject headings:
Aargau (Switzerland)--Economic conditions.
Aargau (Switzerland)--History.
Financial crises--Switzerland--Aargau--History.
Poor--Switzerland--Aargau--Social conditions.
Poverty--Switzerland--Aargau--History.
Public welfare--Switzerland--Aargau--History.
Princeton subject headings:
Poverty--Switzerland--Ruederche River Valley--History--19th century.
Ruederche River Valley (Switzerland)--Economic conditions--19th century.