Columbia subject headings:
Berlin (Germany)--Politics and government--1945-1990.
Berlin Wall, Berlin, Germany, 1961-1989.
Kennedy, John F. (John Fitzgerald), 1917-1963.
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Soviet Union.
Harvard subject headings:
Berlin (Germany)--History--1945-1990
Berlin (Germany)--Politics and government--1945-1990
Berlin Wall, Berlin, Germany, 1961-1989.
Cold War.
Germany--Foreign relations--United States.
Kennedy, John F. (John Fitzgerald), 1917-1963
Soviet Union--Foreign relations--United States.
United States--Foreign relations--Germany.
United States--Foreign relations--Soviet Union.
Visits of state--Germany--Berlin.
Princeton subject headings:
Berlin (Germany)--History--1945-1990.
Cold War.
Germany--Foreign relations--United States.
Kennedy, John F. (John Fitzgerald), 1917-1963.
United States--Foreign relations--Germany.
Visits of state--Germany--Berlin.