Columbia subject headings:
Communist countries--Foreign economic relations.
Harvard subject headings:
Council for Mutual Economic Assistance.
Europe, Eastern--Foreign economic relations--Soviet Union.
Industrial productivity--Europe, Eastern.
Industrial productivity--Soviet Union.
Soviet Union--Economic policy--1986-1991.
Soviet Union--Foreign economic relations--Europe, Eastern.
Princeton subject headings:
Communist countries--Foreign economic relations.
Perestroĭka.
Soviet Union--Economic policy--1986-1991.
Soviet Union--Foreign economic relations.