Columbia subject headings:
Harvard subject headings:
Communist countries--Economic conditions.
Communist countries--Economic policy.
Communist countries--Foreign economic relations.
Levcik, Friedrich.
Marxian economics.
Socialism--Europe, Eastern
Princeton subject headings:
Communist countries--Economic conditions.
Communist countries--Economic policy.
Communist countries--Foreign economic relations.
Levcik, Friedrich.
Marxian economics.
Socialism--Europe, Eastern.