Columbia subject headings:
Nazi concentration camps--Germany--History--20th century.
World War, 1939-1945--Concentration camps--Germany.
Harvard subject headings:
Nationalsozialistische Deutsche Arbeiter-Partei--History.
Nazi concentration camps--Germany--History
World War, 1939-1945--Concentration camps--Germany
Princeton subject headings:
Nationalsozialistische Deutsche Arbeiter-Partei--History.
Nazi concentration camps--Germany--History.
World War, 1939-1945--Concentration camps--Germany.