Columbia subject headings:
Sotsialdemokrat (Geneva, Switzerland)
Harvard subject headings:
Lenin, Vladimir Ilʹich, 1870-1924
Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡.
Sot︠s︡ialdemokrat (Geneva, Switzerland)
Princeton subject headings:
Sot︠s︡ialdemokrat (Geneva)