Columbia subject headings:
Harvard subject headings:
Anti-Nazi movement--Germany--History--Congresses.
Germany--History--1933-1945--Congresses.
Hitler, Adolf, 1889-1945--Assassination attempt, 1944 (July 20)--Congresses.
Trott zu Solz, Adam von, 1909-1944--Congresses.
Princeton subject headings:
Anti-Nazi movement--Germany--Anniversaries, etc.--Congresses.
Germany. Auswärtiges Amt--Officials and employees--Biography.
Hitler, Adolf, 1889-1945--Assassination attempt, 1944 (July 20)--Congresses.
Lawyers--Germany--Biography--Congresses.
Political activists--Germany--Biography--Congresses.
Trott zu Solz, Adam von, 1909-1944--Anniversaries, etc.--Congresses.
Trott zu Solz, Adam von, 1909-1944--Congresses.