Columbia subject headings:
Developing countries--Foreign economic relations--United States.
United States--Foreign economic relations--Developing countries.
Harvard subject headings:
Developing countries--Economic policy.
Developing countries--Foreign economic relations--United States.
International economic relations.
United States--Economic policy.
United States--Foreign economic relations--Developing countries.
Princeton subject headings:
Developing countries--Foreign economic relations--United States.
United States--Foreign economic relations--Developing countries.