Title: Ėsery na istoricheskom perelome
Subjects: Soviet Union, History, Politics and government, Partīi︠a︡ sot︠s︡īalistov-revoli︠u︡t︠s︡īonerov, Partī︠i︡a so︠t︡sīalistov-revol︠i︡u︠t︡sīonerov, Partīi͡a sot͡sīalistov-revoli͡ut͡sīonerov
Time periods: Revolution, 1917-1921