Columbia subject headings:
Harvard subject headings:
Germany--History--1933-1945.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Concentration camps--Germany--Hesse.
World War, 1939-1945--Concentration camps--Hesse-Kassel (Electorate)
World War, 1939-1945--Prisoners and prisons, German.
Princeton subject headings:
Germany--History--1933-1945.
World War, 1939-1945--Atrocities.
World War, 1939-1945--Concentration camps--Germany--Hesse.
World War, 1939-1945--Prisoners and prisons, German.