Columbia subject headings:
Harvard subject headings:
Anti-Nazi movement--Austria--History--Congresses.
Anti-Nazi movement--Germany--History--Congresses.
Anti-Nazi movement--Italy--Trentino-Alto Adige--Congresses.
Germany--History--1933-1945--Congresses.
Hitler, Adolf, 1889-1945--Assassination attempt, 1944 (July 20)--Congresses.
National socialism--Congresses.
Opposition (Political science)--Germany--Congresses.
Princeton subject headings:
Anti-Nazi movement--Austria--History--Congresses.
Anti-Nazi movement--Germany--History--Congresses.
Anti-Nazi movement--Italy--Trentino-Alto Adige--Congresses.
Germany--History--1933-1945--Congresses.
Hitler, Adolf, 1889-1945--Assassination attempt, 1944 (July 20)--Congresses.
National socialism--Congresses.
Opposition (Political science)--Germany--Congresses.