Columbia subject headings:
Harvard subject headings:
Baghdad Railway--History.
Railroads--Germany--History
Railroads--Iraq--History.
Railroads--Turkey--History.
William II, German Emperor, 1859-1941
Princeton subject headings:
Abdülhamid II, Sultan of the Turks, 1842-1918.
Germany--Foreign relations--Turkey.
Railroads--Turkey.
Turkey--Foreign relations--Germany.
William II, German Emperor, 1859-1941.