Columbia subject headings:
Communism--Russia (Federation)--Voronezhskai︠a︡ oblastʹ.
Soviet Union--History--Revolution, 1917-1921.
Voronezhskai︠a︡ oblastʹ (Russia)--History--20th century--Sources.
Voronezhskai︠a︡ oblastʹ (Russia)--History--20th century.
Voronezhskai︠a︡ oblastʹ (Russia)--Politics and government.
Harvard subject headings:
Soviet Union--History--Revolution, 1917-1921.
Voronezhskai︠a︡ oblastʹ (Russia)--Biography.
Voronezhskai︠a︡ oblastʹ (Russia)--History.
Princeton subject headings:
Soviet Union--History--Revolution, 1917-1921.
Voronezhskai︠a︡ oblastʹ (Russia)--Biography.
Voronezhskai︠a︡ oblastʹ (Russia)--History.