Tham khảo Airco_DH.9A

Ghi chú
  1. Bowyer 1974, p. 48.
  2. Mason 1994, p. 105.
Tài liệu
  • Alexandrov, Andrei and Gennady Petrov. "Aah! De Havilland-Ski!:Origins and Development of the R-1, the Soviet DH.9A". Air Enthusiast, Number 74, March/April 1998. Stamford, UK: Key Publishing, các trang 54–63. ISSN 0143-5450.
  • Bowyer, Chaz. "de Havilland D.H.9A (RAF: 1918-30)". Aircraft in Profile, Volume 14. Windsor, Berkshire, UK: Profile Publications Ltd., 1974, các trang 25–49. ISBN 0-35383-023-1.
  • Bruce, J.M. "The De Havilland D.H.9A: Historic Military Aircraft No.13, Part I". Flight, ngày 25 tháng 5 năm 1956, các trang 641–644.
  • Bruce, J.M. "The De Havilland D.H.9A: Historic Military Aircraft No.13, Part II". Flight, ngày 1 tháng 6 năm 1956, các trang 677–680.
  • Cornelisse, Diana G. Splendid Vision, Unswerving Purpose: Developing Air Power for the United States Air Force During the First Century of Powered Flight. Wright-Patterson Air Force Base, Ohio: U.S. Air Force Publications, 2002. ISBN 0-16-067599-5.
  • Donald, David, ed. The Encyclopedia of World Aircraft. London: Aerospace Publishing, 1997. ISBN 1-85605-375-X.
  • Gunston, Bill. The Osprey Encyclopedia of Russian Aircraft from 1875 - 1995. London: Osprey Aerospace, 1995. ISBN 1-85532-405-9.
  • Jackson, A.J. De Havilland Aircraft since 1909. London: Putnam, Third edition, 1987. ISBN 0-85177-802-X.
  • Mason, Francis K. The British Bomber since 1914. London: Putnam Aeronautical Books, 1994. ISBN 0-85177-861-5.
  • Thetford, Owen. "By Day and By Night: Part 3". Aeroplane Monthly, Vol. 20, No. 8, Issue No. 232, August 1992, các trang 16–22. London: IPC. ISSN 0143-7240.
  • Williams, George K. Biplanes and Bombsights: British Bombing in World War I. Maxwell Air Force Base, Alabama: Air University Press, 1999. ISBN 1-41020-012-4.