Columbia subject headings:
Harvard subject headings:
Berlin (Germany)--History--1945-1990
Berlin (Germany)--History--Blockade, 1948-1949
Germany--History--20th century.
Mayors--Germany--Berlin--Biography.
Reuter, Ernst, 1889-1953.
Princeton subject headings:
Berlin (Germany)--History--1945-1990.
Berlin (Germany)--History--Blockade, 1948-1949.
Germany--History--20th century.
Mayors--Germany--Berlin--Biography.
Reuter, Ernst, 1889-1953.