Columbia subject headings:
Harvard subject headings:
Greece--Foreign relations--United States.
Greece--Politics and government--1967-1974.
United States--Foreign relations--1963-1969.
United States--Foreign relations--1969-1974.
United States--Foreign relations--Greece.
Princeton subject headings:
Greece--Foreign relations--United States.
Greece--Politics and government--1967-1974.
United States--Foreign relations--Greece.