Columbia subject headings:
Harvard subject headings:
Elite (Social sciences)--Germany--History--20th century--Congresses.
National socialism--Congresses.
World War, 1939-1945--Causes--Congresses.
World War, 1939-1945--Germany--Congresses.
Princeton subject headings:
Elite (Social sciences)--Germany--History--20th century.
Germany--History--1933-1945.