United States. Army. Air Corps. (1922). Technical Bulletin No. 31: Development of military aircraft material for U.S. Air Service under supervision of Engineering Division. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Technical Bulletin No. 31: Development of Military Aircraft Material for U.S. Air Service Under Supervision of Engineering Division. McCook Field, Ohio: [publisher not identified], 1922.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Technical Bulletin No. 31: Development of Military Aircraft Material for U.S. Air Service Under Supervision of Engineering Division. [publisher not identified], 1922.
Warning: These citations may not always be 100% accurate.