Columbia subject headings:
Harvard subject headings:
Anti-Nazi movement--Germany--Biography
Guttenberg, Karl Ludwig, Freiherr von und zu, 1902-1945.
Hitler, Adolf, 1889-1945--Assassination attempt, 1944 (July 20)
Revolutionaries--Germany--Biography
Princeton subject headings:
Anti-Nazi movement--Germany--Biography.
Guttenberg, Karl Ludwig, Freiherr von und zu, 1902-1945.
Hitler, Adolf, 1889-1945--Assassination attempts.
Revolutionaries--Germany--Biography.