Rond indelingsembleem ''Corps of Engineers'' (US) waarop kasteel met twee torens Indelingsembleem tbv ''Engineer Corps'' (US), bestaande uit burcht met twee torens en lagere ingang Aviation engineers - USA Voorschrift, Tentative Technical Manual, 5-255 Plastics engineering handbook of the Society of the Plastics Industry Electrical communication systems engineering - USA Voorschrift, Technical Manual, 11-486 Aircraft engines - USA Voorschrift, Technical Manual, 1-405 Aircraft engines - USA Voorschrift, Technical Manual, 1-405 Corps of engineers : Duties and relations of engineer troops - USA Voorschrift, Training Regulations, No. 445-15 searchlight in the U.S. Navy / by Ralph Kelly Army nuclear power program / U.S. Army Office, Chief of Engineers, Nuclear Power Division united states army in world war ii Corps of Engineers : the war against Japan / by Karl C. Dod united states army in world war ii Corps of Engineers : troops and equipment / by Blanche D. Coll, Jean E. Keith and Herbert H. Rosenthal
