Columbia subject headings:
Conference papers and proceedings.
Soviet Union--Foreign relations--1917-1945--Congresses.
Soviet Union--History--Allied intervention, 1918-1920--Congresses.
Soviet Union--History--Revolution, 1917-1921--Congresses.
Soviet Union--History--Revolution, 1917-1921--Influence--Congresses.
Harvard subject headings:
Princeton subject headings:
Soviet Union--Foreign relations--1917-1945--Congresses.
Soviet Union--History--Allied intervention, 1918-1920.
Soviet Union--History--Revolution, 1917-1921--Congresses.
Soviet Union--History--Revolution, 1917-1921--Influence--Congresses.