Columbia subject headings:
Harvard subject headings:
Communism--Soviet Union--History
Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza--History.
Soviet Union--Politics and government.
Princeton subject headings:
Communism--Soviet Union--History.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History.
Soviet Union--Politics and government.