Tham khảo Douglas_XP-48

Ghi chú
  1. ↑ "Douglas XP-48". National Museum of the United States Air Force. Truy cập ngày 9 tháng 5 năm 2010.
  2. 1 2 3 Norton 2008, p. 156
  3. ↑ Angelucci 1987, p. 183.
  4. ↑ Francillon 1979
Tài liệu
  • Adcock, Al. OS2U Kingfisher in action. Carrollton, Texas: Squadron/Signal Publications, 1991. ISBN 0-89747-270-5.
  • Angelucci, Enzo. The American Fighter from 1917 to the present. New York: Orion, 1987. ISBN 0-517-56588-9.
  • Brown, Kimbrough et. al. U.S. Army and Air Force Fighters, 1916-1961. Letchworth, UK: Harleyford Publications, 1961. ASIN B001YTWMPC
  • Francillon, René J. McDonnell Douglas Aircraft since 1920. London: Putnam & Company Ltd., 1979. ISBN 0-370-00050-1.
  • Norton, Bill. U.S. Experimental & Prototype Aircraft Projects: Fighters 1939–1945. North Branch, Minnesota: Specialty Press, 2008. ISBN 978-1-58007-109-3.