Columbia subject headings:
Braunschweig (Germany : State)--Economic policy.
Roads--Germany--Braunschweig (State)--History--19th century.
Roads--Germany--Saxony--History--19th century.
Saxony (Germany)--Economic policy.
Harvard subject headings:
Roads--Germany--Braunschweig--History.
Roads--Prussia (Kingdom)--Saxony--History.
Princeton subject headings:
Braunschweig (Germany : State)--Economic policy.
Roads--Germany--Braunschweig (State)--History--19th century.
Roads--Germany--Saxony--History--19th century.
Saxony (Germany)--Economic policy.