Columbia subject headings:
Developing countries--Relations--Soviet Union.
Soviet Union--Foreign relations administration.
Soviet Union--Relations--Developing countries.
Harvard subject headings:
Developing countries--Relations--Soviet Union.
Soviet Union--Foreign relations administration.
Soviet Union--Relations--Developing countries.
Princeton subject headings:
Developing countries--Relations--Soviet Union.
Soviet Union--Foreign relations administration.
Soviet Union--Relations--Developing countries.