Columbia subject headings:
Austria--Foreign relations--1867-1918.
Austria--History--1867-1918.
Friedjung, Heinrich, 1851-1920--Diaries.
Historians--Austria--Diaries.
Harvard subject headings:
Austria--Foreign relations--1867-1918.
Austria--History--1867-1918.
Friedjung, Heinrich, 1851-1919--Diaries.
Historians--Austria--Diaries.
Princeton subject headings:
Austria--Foreign relations--1867-1918.
Austria--History--1867-1918.
Friedjung, Heinrich, 1851-1920--Diaries.
Historians--Austria--Diaries.