States Government Printing Office, 1921 Henry W. Miller, The Paris Gun: The Bombardment of Paris by the German Long Range Guns and the Great German Offensive of 1918, Jonathan Cape, Harrison Smith, New York, 1930 Ian V. Hogg, The Guns 1914 -18, Ballantine Books, New York, 1971 External links The Paris Gun in the First World War.com Encyclopedia Paris Gun at S. Berliner, III's ORDNANCE Superguns Une page sur le canon de Paris 210 mm artillery Siege artillery World War I railway artillery of Germany Lost objects 1918 in Paris