Columbia subject headings:
Holocaust, Jewish (1939-1945)
Internment camps.
National socialism.
Nazi concentration camps.
Harvard subject headings:
Holocaust, Jewish (1939-1945)
World War, 1939-1945--Concentration camps.
World War, 1939-1945--Conscript labor.
Princeton subject headings:
Holocaust, Jewish (1939-1945)
World War, 1939-1945--Concentration camps.
World War, 1939-1945--Conscript labor.