Columbia subject headings:
Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza--History--Handbooks, manuals, etc.
Harvard subject headings:
Kommunisticheskai͡a partii͡a Sovetskogo Soi͡uza--Congresses--History.
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History--Congresses.
Princeton subject headings:
Kommunisticheskai︠a︡ partii︠a︡ Sovetskogo Soi︠u︡za--History--Handbooks, manuals, etc.