128 vols., Washington, D.C.: U.S. Government Printing Office, 1880-1901, Series I, Volume XI, Part 1.
Peter Heigl, Schotter für die Wüste. Die Bagdadbahn und ihre deutschen Bauingenieure, Nürnberg 2004
Morris Jastrow, Jr., The War and the Bagdad Railroad. 1917
Henderson, W.O.German Economic Penetration in the Middle East, 1870-1914, The Economic History Review 1948
Engdahl, William A Century of War, Anglo-American Oil Politics and the New World Order
Kinzer, Sephen All the Shah's Men: An American Coup and the Roots of Middle East Terror by Stephen Kinzer, 2003
E. M. Earle Turkey, the Great Powers, and the Bagdad Railway”. Russel and Russel 1923
William Engdahl, A Century of War: Anglo-American Oil Politics and the New World Order
Ruth Henig, The Origins of the First World War. Routledge. 1989
John B. Wolf. The Diplomatic History of the Bagdad Railroad. 1973.
Hopkirk, Peter (1994). On Secret Service East of Constantinople, Oxford University Press
Yeats, John  The Technical History of Commerce 1887