Columbia subject headings:
Peasants--Soviet Union.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Working class--Soviet Union.
Harvard subject headings:
Rossiiskaia sotsial-demokraticheskaia rabochaia partiia.
Princeton subject headings:
Peasants--Soviet Union.
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡--History.
Working class--Soviet Union.