United States. Army. Air Corps. (1922). Comparative performance test of X.B.I.-A equipped with high compression Wright model "H" and Packard 1237 engines. U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Comparative Performance Test of X.B.I.-A Equipped with High Compression Wright Model "H" and Packard 1237 Engines. Washington: U.S. GPO, 1922.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Comparative Performance Test of X.B.I.-A Equipped with High Compression Wright Model "H" and Packard 1237 Engines. U.S. GPO, 1922.
Warning: These citations may not always be 100% accurate.