Columbia subject headings:
Turkey--Foreign relations.
Turkey--History--Ottoman Empire, 1288-1918.
Harvard subject headings:
Europe--Foreign relations--Turkey.
Turkey--Foreign relations--Europe.
Turkey--Politics and government--1878-1909.
Princeton subject headings:
Europe--Foreign relations--Turkey.
Great powers--History--19th century.
Turkey--Foreign relations--Europe.
Turkey--Politics and government--1878-1909.