Columbia subject headings:
Minorities--Crimes against--Soviet Union--Sources.
Political persecution--Soviet Union--Sources.
Political rehabilitation--Soviet Union--Sources.
Soviet Union--Ethnic relations--History--Sources.
Harvard subject headings:
Minorities--Crimes against--Soviet Union--History--Sources.
Political persecution--Soviet Union--History--Sources.
Political rehabilitation--Soviet Union--History--Sources.
Soviet Union--Ethnic relations--History--Sources.
Princeton subject headings:
Political persecution--Soviet Union--History--Sources.
Political rehabilitation--Russia (Federation)--Sources.
Russia (Federation)--Ethnic relations--Sources.
Soviet Union--Ethnic relations--Sources.
Soviet Union--Politics and government--1925-1953--Sources.