United States. Army. Air Corps. (1921). Economic limit in aspect ratio of single-bay pursuit biplanes (Airplane Section, S. and A. Branch). U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Economic Limit in Aspect Ratio of Single-bay Pursuit Biplanes (Airplane Section, S. and A. Branch). Washington: U.S. GPO, 1921.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Economic Limit in Aspect Ratio of Single-bay Pursuit Biplanes (Airplane Section, S. and A. Branch). U.S. GPO, 1921.
Warning: These citations may not always be 100% accurate.