Columbia subject headings:
Harvard subject headings:
Internment camps--Soviet Union--History
Labor camps--Soviet Union--History.
Prisoners of war--Soviet Union--History
Soviet Union. Narodnyĭ komissariat vnutrennikh del--History.
Princeton subject headings:
Internment camps--Soviet Union--History.
Labor camps--Soviet Union--History.
Prisoners of war--Soviet Union--History.
Soviet Union. Narodnyĭ komissariat vnutrennikh del--History.