Columbia subject headings:
Labor unions--Soviet Union--History.
Partīi︠a︡ sot︠s︡īalistov-revoli︠u︡t︠s︡īonerov.
Russia--History--1904-1914.
Harvard subject headings:
Labor unions--Political activity--Russia--History--20th century.
Labor unions--Soviet Union--Political activity--History--20th century.
Partīi︠a︡ sot︠s︡īalistov-revoli︠u︡t︠s︡īonerov--History.
Princeton subject headings:
Labor unions--Russia--History.
Partīi︠a︡ sot︠s︡īalistov-revoli︠u︡t︠s︡īonerov.
Russia--History--1904-1914.