Columbia subject headings:
Germany (East)--Economic conditions.
Germany (East)--Politics and government.
Germany (East)--Social conditions.
Harvard subject headings:
Germany (East)--Economic conditions.
Germany (East)--Politics and government.
Germany (East)--Social conditions.
Princeton subject headings:
Germany (East)--Economic conditions.
Germany (East)--Politics and government.
Germany (East)--Social conditions.