Columbia subject headings:
Germany (East)--Politics and government--1989-1990.
Political parties--Germany (East)
Sozialistische Einheitspartei Deutschlands--History.
Harvard subject headings:
Block parties--Germany (East)
Germany (East)--Politics and government--1989-1990
Political parties--Germany (East)
Sozialistische Einheitspartei Deutschlands--History.
Princeton subject headings:
Block parties--Germany (East).
Germany (East)--Politics and government--1989-1990.
Political parties--Germany (East)
Sozialistische Einheitspartei Deutschlands--History.