Title: Vtoroi sʺezd RSDRP i ego vsemirno-istoricheskoe znachenie
Subjects: Rossiĭskai︠a︡ sot︠s︡ial-demokraticheskai︠a︡ rabochai︠a︡ partii︠a︡. Sʺezd 1903 : Brussels, Belgium and London, England)