Columbia subject headings:
Generals--Germany.
Heads of state--Germany--Biography.
Hitler, Adolf, 1889-1945--Assassination attempts.
Harvard subject headings:
Generals--Germany.
Heads of state--Germany--Biography.
Hitler, Adolf, 1889-1945--Assassination attempt, 1944 (July 20)
Princeton subject headings:
Generals--Germany.
Heads of state--Germany--Biography.
Hitler, Adolf, 1889-1945--Assassination attempts.