Theory and design of recoil systems and gun carriages / prep. in the Office of the Chief of Ordnance comparative psychology monographs Studies of autonomic balance in army air forces personnel / M.A. Wenger Springfield Armory shoulder weapons 1795-1968 / Robert W.D. Ball Exterior ballistics 1930 : a text book of those elements of exterior ballistics which are the fundamentals of naval gunnery, written for the use of … Internal ballistics of solid-fuel rockets : military rockets using dry-processed double-base propellant as fuel / by R.N. Wimpress ; with a pref. by B.H. Sage