Columbia subject headings:
National socialism--History.
World War, 1939-1945--Concentration camps.
World War, 1939-1945--Germany.
Harvard subject headings:
National socialism--History.
World War, 1939-1945--Concentration camps.
World War, 1939-1945--Germany.
Princeton subject headings:
National socialism--History.
World War, 1939-1945--Concentration camps.
World War, 1939-1945--Germany.