Columbia subject headings:
Developing countries--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--1978-
Soviet Union--Foreign relations--Developing countries.
Harvard subject headings:
Developing countries--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--1975-1985.
Soviet Union--Foreign relations--Developing countries.
Princeton subject headings:
Developing countries--Foreign relations--Soviet Union.
Soviet Union--Foreign relations--1978-.
Soviet Union--Foreign relations--Developing countries.