United States. Army. Air Corps. (1921). Report on special airplane wheel and tire (28 by 4 straight-side tire, one-piece rim). U.S. GPO.
Chicago Style (17th ed.) CitationUnited States. Army. Air Corps. Report on Special Airplane Wheel and Tire (28 by 4 Straight-side Tire, One-piece Rim). Washington: U.S. GPO, 1921.
MLA (9th ed.) CitationUnited States. Army. Air Corps. Report on Special Airplane Wheel and Tire (28 by 4 Straight-side Tire, One-piece Rim). U.S. GPO, 1921.
Warning: These citations may not always be 100% accurate.