Columbia subject headings:
Gelderland (Netherlands)--Economic conditions.
Zutphen (Netherlands)--Economic conditions.
Harvard subject headings:
Gelderland (Netherlands)--Economic conditions.
Zutphen (Netherlands)--Economic conditions.
Princeton subject headings:
Gelderland (Netherlands)--Economic conditions.
Gelderland (Netherlands)--Social conditions.
Taxation--Netherlands--Gelderland--History.