Columbia subject headings:
Harvard subject headings:
National socialism
Nazi concentration camps--Germany--History
World War, 1939-1945--Atrocities--Germany
World War, 1939-1945--Concentration camps
World War, 1939-1945--Prisoners and prisons, Soviet
Princeton subject headings:
Prisoner-of-war camps--Germany--History--20th century.
World War, 1939-1945--Atrocities--Germany.
World War, 1939-1945--Prisoners and prisons, Soviet.