Columbia subject headings:
Harvard subject headings:
Germany (East)--History.
Germany (East)--Politics and government.
Politics and culture--Germany (East)--History.
Socialism--Germany (East)
Sozialistische Einheitspartei Deutschlands.
Princeton subject headings:
Germany (East)--Politics and government.
Socialism--Germany (East)--History.
Sozialistische Einheitspartei Deutschlands.