Columbia subject headings:
Harvard subject headings:
Forced labor--Soviet Union--History--20th century.
Internment camps--Soviet Union--History
World War, 1939-1945--Conscript labor--Soviet Union.
World War, 1939-1945--Prisoners and prisons, Soviet.
Princeton subject headings:
Forced labor--Soviet Union--History--20th century.
Internment camps--Soviet Union--History--20th century.
World War, 1939-1945--Conscript labor--Soviet Union.
World War, 1939-1945--Prisoners and prisons, Soviet.