United States. Army. Air Corps. (1918). Spad XI, directions for regulation and upkeep of 2-seater biplanes S. XI, Hispano-Suiza 200 hp motor. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Spad XI, Directions for Regulation and Upkeep of 2-seater Biplanes S. XI, Hispano-Suiza 200 Hp Motor. [Place of publication not identified]: [publisher not identified], 1918.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Spad XI, Directions for Regulation and Upkeep of 2-seater Biplanes S. XI, Hispano-Suiza 200 Hp Motor. [publisher not identified], 1918.
Warning: These citations may not always be 100% accurate.