Columbia subject headings:
Developing countries--Foreign relations--Soviet Union.
Developing countries--Foreign relations--United States.
Soviet Union--Foreign relations--Developing countries.
United States--Foreign relations--Developing countries.
Harvard subject headings:
Developing countries--Foreign relations--Soviet Union.
Developing countries--Foreign relations--United States.
Soviet Union--Foreign relations--Developing countries.
United States--Foreign relations--Developing countries.
Princeton subject headings:
Developing countries--Foreign relations--United States.
United States--Foreign relations--Developing countries.