Columbia subject headings:
Germany--History--William II, 1888-1918--Sources.
Statesmen--Germany--Biography.
Harvard subject headings:
Bavaria (Germany)--History--1777-1918--Sources.
Germany--History--1871-1918--Sources.
Statesmen--Germany--Biography.
Statesmen--Germany--Correspondence.
Princeton subject headings:
Germany--History--1871-1918--Sources.
Statesmen--Germany--Correspondence.