Columbia subject headings:
Harvard subject headings:
Partīi︠a︡ sot︠s︡īalistov-revoli︠u︡t︠s︡īonerov--History.
Russia--Economic conditions--1861-1917.
Russia--History--Revolution, 1905-1907.
Russia--Politics and government--1894-1917.
Working class--Political activity--Soviet Union--History.
Princeton subject headings:
Partīi︠a︡ sot︠s︡īalistov-revoli︠u︡t︠s︡īonerov--History.
Russia--Economic conditions--1861-1917.
Russia--History--Revolution, 1905-1907.
Russia--Politics and government--1894-1917.
Working class--Russia--Political activity--History.