Columbia subject headings:
Communism--Europe, Eastern.
Communism.
Communist countries--Economic policy.
Europe, Eastern--Economic policy.
Harvard subject headings:
Communism--Europe, Eastern
Communism.
Communist countries--Economic policy.
Europe, Eastern--Economic policy.
Princeton subject headings:
Communism--Europe, Eastern.
Communism.
Communist countries--Economic policy.
Europe, Eastern--Economic policy.