Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--Politics and government--1945-1990
Communism--Germany--History--20th century
Kommunistische Partei Deutschlands--History--20th century.
Kommunistische Partei Deutschlands. Bezirk Gross-Berlin--History.
Princeton subject headings:
Berlin (Germany)--Politics and government--1945-1990.
Communism--Germany--History--20th century.
Kommunistische Partei Deutschlands--History--20th century.
Kommunistische Partei Deutschlands. Bezirk Gross-Berlin--History.