Columbia subject headings:
Harvard subject headings:
Anti-Nazi movement--Germany--Congresses
Elser, Johann Georg, 1903-1945--Congresses.
Hitler, Adolf, 1889-1945--Assassination attempt, 1939 (November 8)--Congresses.
Princeton subject headings:
Elser, Johann Georg, 1903-1945--Congresses.
Hitler, Adolf, 1889-1945--Assassination attempts, 1939 (November 8)--Congresses.