Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--20th century--Biography.
Berlin (Germany)--Biography
Berlin (Germany)--History--1945-1990
Berlin (Germany)--Politics and government--20th century--Biography.
Berlin Wall, Berlin, Germany, 1961-1989--Biography.
Berlin Wall, Berlin, Germany, 1961-1989--History.
Germany--History--Unification, 1990.
Mayors--Germany--Berlin--20th century--Biography.
Mayors--Germany--Berlin--Biography.
Momper, Walter.
Politicians--Germany--Berlin--20th century--Biography.
Princeton subject headings:
Berlin (Germany)--20th century--Biography.
Berlin (Germany)--Politics and government--20th century--Biography.
Berlin Wall, Berlin, Germany, 1961-1989--History.
Germany--History--Unification, 1990.
Mayors--Germany--Berlin--20th century--Biography.
Momper, Walter.
Politicians--Germany--Berlin--20th century--Biography.