Columbia subject headings:
Political parties--Soviet Union.
Soviet Union--Politics and government.
Harvard subject headings:
Political parties--Soviet Union.
Soviet Union--Politics and government--1917-1936.
Princeton subject headings:
Communism--Soviet Union.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History.
Soviet Union--Politics and government.