Foundations of bridges and buildings / by Henry S. Jacoby and Roland P. Davis Formulas for stress and strain / Raymond J. Roark militair-strategisch denken in de Verenigde Staten en de Sowjet-Unie : overeenkomsten en verschillen / G.C. Berkhof en P.M.E. Volten 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 research study National security and individual freedom / H.D. Lasswell