Title: Petrogradskiĭ proletariat i bolʹshevistskai︠a︡ organizat︠s︡ii︠a︡ v gody imperialisticheskoĭ voĭny, 1914-1917 gody
Subjects: Working class, Sources, History
Places: Russia (Federation), Saint Petersburg, Saint Petersburg (Russia), Russia
Time periods: To 1917, Nicholas II, 1894-1917