Columbia subject headings:
Harvard subject headings:
Forced labor--Germany--Lower Saxony--History--20th century--Sources.
National socialism--Germany--Lower Saxony--Sources.
Prisoners of war--Germany--History--20th century--Sources.
Prisoners of war--Germany--History--Sources.
Prisoners of war--Soviet Union--History--20th century--Sources.
Prisoners of war--Soviet Union--History--Sources.
Prisoners, Foreign--Germany--History--Sources.
World War, 1939-1945--Conscript labor--Germany--Lower Saxony--Sources.
World War, 1939-1945--Conscript labor--Germany--Sources.
World War, 1939-1945--Germany, Northern--Prisoners and prisons--Sources.
World War, 1939-1945--Prisoners and prisons, German--Sources.
World War, 1939-1945--Prisoners and prisons, Soviet--Sources.
Princeton subject headings:
Prisoners of war--Germany--History--Sources.
Prisoners of war--Soviet Union--History--Sources.
Prisoners, Foreign--Germany--History--Sources.
World War, 1939-1945--Conscript labor--Germany--Sources.
World War, 1939-1945--Prisoners and prisons, German--Sources.