Columbia subject headings:
Harvard subject headings:
Berlin Wall, Berlin, Germany, 1961-1989--Political aspects.
Berlin Wall, Berlin, Germany, 1961-1989.
Kennedy, John F. (John Fitzgerald), 1917-1963
United States--Foreign relations--1961-1963--Decision making--Case studies.
Princeton subject headings:
Berlin Wall, Berlin, Germany, 1961-1989.
Kennedy, John F. (John Fitzgerald), 1917-1963.
United States--Foreign relations--1961-1963--Decision making--Case studies.