Columbia subject headings:
Harvard subject headings:
Europe--Foreign relations--1945-
Europe--Foreign relations--United States.
Nixon, Richard M. (Richard Milhous), 1913-1994
United States--Foreign relations--1969-1974.
United States--Foreign relations--Europe.
Princeton subject headings:
Europe--Foreign relations--1945-
Europe--Foreign relations--United States.
Nixon, Richard M. (Richard Milhous), 1913-1994.
United States--Foreign relations--1969-1974.
United States--Foreign relations--Europe.