document Airpower : report of the Subcommittee on the Air Force of the Committee on Armed Services United States Senate eighty-fourt congress together with minority views Second report of the Commanding General of the U.S. Army Air Forces to the Secretary of War / [H.H. Arnold] Reisverslag van het orientatiebezoek aan de United States Air Force : 6-26 febr. 1954 report / advisory group for aeronautical research and development United States army experience in operations from unprepared fields / by John F. Denhart