Columbia subject headings:
Europe, Eastern--Ethnic relations.
Soviet Union--Ethnic relations.
Soviet Union--History--Revolution, 1917-1921--Influence.
Harvard subject headings:
Minorities--Soviet Union
Nationalism and communism.
Soviet Union--History--Revolution, 1917-1921.
Princeton subject headings:
Europe, Eastern--Ethnic relations.
Soviet Union--Ethnic relations.
Soviet Union--History--Revolution, 1917-1921--Influence.