Columbia subject headings:
Berlin (Germany)--Politics and government.
Berlin Wall, Berlin, Germany, 1961-1989.
Germany (West)--Politics and government.
Harvard subject headings:
Berlin (Germany)--Politics and government
Berlin (Germany)--Politics and government--1945-1990
Berlin Wall, Berlin, Germany, 1961-1989.
Germany (West)--Politics and government.
Princeton subject headings:
Berlin (Germany)--Politics and government.
Berlin Wall, Berlin, Germany, 1961-1989.
Germany (West)--Politics and government.