Columbia subject headings:
International relations--Research.
United States--Foreign relations administration.
United States--Foreign relations--1945-1989--Research.
Harvard subject headings:
International relations--Research
United States--Foreign relations administration.
United States--Foreign relations--1945-1989--Research.
Princeton subject headings:
International relations--Research.
United States--Foreign relations administration.
United States--Foreign relations--1945-1989--Research.