Columbia subject headings:
Holocaust, Jewish (1939-1945)
Jews--Persecutions.
National socialism.
World War, 1939-1945--Atrocities.
Harvard subject headings:
Princeton subject headings:
Germany--History--1933-1945.
Holocaust, Jewish (1939-1945)
National socialism.
Romani Genocide, 1939-1945.
War crimes.
World War, 1939-1945--Atrocities.