Columbia subject headings:
Harvard subject headings:
Germany (West)--Economic policy.
Germany (West)--Politics and government.
Germany (West)--Relations--Great Britain.
Great Britain--Relations--Germany (West)
Ruhr (Germany : Region)--Economic conditions
Princeton subject headings:
Germany--History--1945-1955.
North Rhine-Westphalia (Germany)--Economic conditions.
North Rhine-Westphalia (Germany)--Politics and government.