Columbia subject headings:
Harvard subject headings:
Bosporus (Turkey)
Dardanelles (Turkey)
Dardanelles Strait (Turkey)
Eastern question (Balkan)
Istanbul (Turkey)--History.
Russia--Foreign relations--1894-1917.
World War, 1914-1918--Diplomatic history
Princeton subject headings:
Bosporus (Turkey)
Dardanelles (Turkey)
Eastern question (Balkan)
Istanbul (Turkey)--History.
Russia--Foreign relations--1894-1917.
World War, 1914-1918--Diplomatic history.