Columbia subject headings:
Ethnology--Soviet Union--Republics.
Russians--Soviet Union--Republics.
Soviet Union--Population--Republics.
Harvard subject headings:
Ethnology--Soviet Union--Republics.
Russians--Soviet Union--Republics.
Soviet Union--Population.
Princeton subject headings:
Migration, Internal--Soviet Union.
Minorities--Soviet Union--Statistics.
Minorities--Soviet Union.
Population forecasting--Soviet Union.
Soviet Union--Ethnic relations.
Soviet Union--Population--Statistics.
Soviet Union--Population.
Statistics.