Columbia subject headings:
Lenin, Vladimir Ilʹich, 1870-1924.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--Party work.
Russia--Politics and government--1894-1917.
Working class--Soviet Union.
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924
Russia--Politics and government--1894-1917.
Working class--Political activity--Russia--History.
Working class--Soviet Union--Political activity--History.
Princeton subject headings:
Lenin, Vladimir Ilʹich, 1870-1924.
Russia--Politics and government--1894-1917.
Working class--Russia--Political activity--History.