A general account of the development of methods of using atomic energy for military purposes under the auspices of the United States government, 1940-1945 [electronic resource] / by H.D. Smyth.
" ... by H.D. Smyth, chairman of the Department of Physics of Princeton University, consultant to Manhattan District, U.S. Corps of Engineers. Written at the request of Major General L.R. Groves, United States Army. Publication authorized as of August 1945"--Cover.