Columbia subject headings:
Cuba--Foreign economic relations--Europe, Eastern.
Europe, Eastern--Foreign economic relations--Cuba.
International division of labor.
Harvard subject headings:
Council for Mutual Economic Assistance.
Cuba--Foreign economic relations--Europe, Eastern.
Europe, Eastern--Foreign economic relations--Cuba.
International division of labor.
Princeton subject headings:
Cuba--Foreign economic relations--Europe, Eastern.
Europe, Eastern--Foreign economic relations--Cuba.
International division of labor.