31. Report of the Commanding General of the Army Air Forces to the Secretary of War Author/Creator: United States. Army Air Forces Publication/Creation: [Washington, D.C.] : [publisher not identified], [1944-] Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
32. Annual report - National Advisory Committee for Aeronautics Author/Creator: United States. National Advisory Committee for Aeronautics Publication/Creation: Washington : U.S. Govt. Print. Off Resource Type: Journal, Newspaper or Serial Access & Availability: Loading
33. Annual report Author/Creator: United States. Air Force. Office of Aerospace Research Publication/Creation: [Washington] : [U.S. G.P.O.] Resource Type: Journal, Newspaper or Serial Access & Availability: Loading