Columbia subject headings:
Harvard subject headings:
Germany (East)--Economic policy.
Middle class--Germany--Thuringia--History--20th century.
Thuringia (Germany)--Economic conditions--20th century.
Princeton subject headings:
Germany (East)--Economic policy.
Middle class--Germany--Thuringia--History--20th century.
Thuringia (Germany)--Economic conditions--20th century.