Columbia subject headings:
Soviet Union--History--Revolution, 1917-1921--Exhibitions.
Soviet Union--History--Revolution, 1917-1921--Influence--Exhibitions.
Harvard subject headings:
Soviet Union--History--Revolution, 1917-1921--Exhibitions.
Soviet Union--History--Revolution, 1917-1921--Influence--Exhibitions.
Princeton subject headings:
Catalogs.
Soviet Union--History--Revolution, 1917-1921--Catalogs.
Soviet Union--History--Revolution, 1917-1921--Exhibitions.
Soviet Union--History--Revolution, 1917-1921--Influence.