Columbia subject headings:
Harvard subject headings:
Austria--History--1867-1918--Sources.
Franz Ferdinand, Archduke of Austria, 1863-1914--Assassination--Diaries.
Franz Ferdinand, Archduke of Austria, 1863-1914.
Princes--Austria--Biography--Sources.
Princeton subject headings:
Franz Ferdinand, Archduke of Austria, 1863-1914.