Columbia subject headings:
Harvard subject headings:
Germany (East)--Economic conditions.
Germany (East)--Foreign economic relations--Soviet Union.
Germany--Politics and government--1945-1990.
Soviet Union--Economic conditions.
Soviet Union--Foreign economic relations--Germany (East)
Princeton subject headings:
Germany (East)--Economic policy.
Germany (East)--Politics and government--1989-1990.
Soviet Union--Economic policy.
Soviet Union--Politics and government--1945-1991.