Columbia subject headings:
Heads of state--Germany--Biography--Congresses.
Hitler, Adolf, 1889-1945--Congresses.
Harvard subject headings:
Heads of state--Germany--Biography--Congresses.
Hitler, Adolf, 1889-1945--Congresses.
Princeton subject headings:
Heads of state--Germany--Biography--Congresses.
Hitler, Adolf, 1889-1945--Congresses.