Canon de 340 modele 1912 a glissement
Harry W Miller
Railway Artillery: A Report on the Characteristics, Scope of Utility, Etc., of Railway Artillery, Volume II, page 92-101 by Harry W Miller, United States Army Ordnance Department. Washington, Government Print Office, 1921. Downloaded from <a rel="nofollow" class="external free" href="http://www.eugeneleeslover.com/ENGINEERING/Railway_artillery2.pdf">http://www.eugeneleeslover.com/ENGINEERING/Railway_artillery2.pdf</a>