Columbia subject headings:
Communism--Germany.
Communist parties--Germany.
Germany (East)--Politics and government.
Partei des Demokratischen Sozialismus (Germany)--History.
Socialism--Germany.
Socialist parties--Germany.
Sozialistische Einheitspartei Deutschlands--History.
Harvard subject headings:
Communism--Germany
Communist parties--Germany.
Germany (East)--Politics and government.
Partei des Demokratischen Sozialismus (Germany)--History.
Socialism--Germany
Socialist parties--Germany.
Sozialistische Einheitspartei Deutschlands--History.
Princeton subject headings: