Columbia subject headings:
Harvard subject headings:
Economic geography--Germany--Tuttlingen Region.
Economic geography.
Germany--Economic conditions--19th century.
Human geography--Germany--Tuttlingen Region.
Land settlement--Germany--Tuttlingen Region.
Tuttlingen Region (Germany)--Economic conditions.
Princeton subject headings:
Black Forest Region (Germany)--Economic conditions.
Black Forest Region (Germany)--Population.
Constance, Lake, Region--Economic conditions.
Constance, Lake, Region--Population.