1 2 3 Albert Mroz, American Military Vehicles of World War I: An Illustrated History of Armored Cars, Staff Cars, Motorcycles, Ambulances, Trucks, Tractors and Tanks, trang 253
1 2 Tony Jacques, Dictionary of Battles and Sieges, trang 710
↑ Francis W. Halsey, The Literary Digest History of the World War: Compiled from Original and Contemporary Sources: American, British, French, German, and Others - Outbreak and Causes - Western Front June 1914 - Octob, trang 285
↑ Francis W Halsey, The Literary Digest History of the World War: Compiled from Original and Contemporary Sources: American, British, French, German, and Others - Western Front July 1915 - May 1917, trang 12
