Columbia subject headings:
Imperialism.
Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza--History.
Harvard subject headings:
Imperialism
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History.
Princeton subject headings:
Imperialism.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History.