Columbia subject headings:
Germany (East)--Politics and government--Sources.
Germany--History--1945-1955--Sources.
Political parties--Germany (East)--History--Sources.
Harvard subject headings:
Germany (East)--History--Sources.
Germany (East)--Politics and government--Sources.
Political parties--Germany (East)--History--Sources.
Princeton subject headings:
Germany (East)--Politics and government--Sources.
Political parties--Germany (East)