Columbia subject headings:
Communism--History.
Communist revisionism.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
SDKPiL--History.
Princeton subject headings:
Communism--History--20th century.
Communist revisionism.
Rossiīskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochii︠a︡ partii︠a︡--History.