Columbia subject headings:
Russia (Territory under White armies, 1918-1920)--History--Congresses.
Soviet Union--Historiography--Congresses.
Soviet Union--History--Revolution, 1917-1921--Congresses.
Harvard subject headings:
Russia (Territory under White armies, 1918-1920)--History--Congresses.
Soviet Union--Historiography--Congresses.
Soviet Union--History--Revolution, 1917-1921--Congresses.
Princeton subject headings: