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