Columbia subject headings:
Harvard subject headings:
Communism--Europe, Eastern
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History.
Princeton subject headings:
Communism--Europe, Eastern.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History.