Columbia subject headings:
Europe--Foreign relations--Turkey.
Turkey--Foreign relations--Europe.
Turkey--History--1878-1909.
Harvard subject headings:
Europe--Foreign relations--Turkey.
Turkey--Foreign relations--Europe.
Turkey--History--1878-1909.
Princeton subject headings:
Abdülhamid II, Sultan of the Turks, 1842-1918.
Europe--Foreign relations--Turkey.
Turkey--Foreign relations--Europe.
Turkey--History--1878-1909.