Tham khảo Percival_Vega_Gull

Ghi chú
  1. ↑ Jackson 1988, p. 103.
Tài liệu
  • Ellison, Norman H. Percivals Aircraft (The Archive Photographs Series). Chalford, Stroud, UK: Chalford Publishing Company, 1997. ISBN 0-7524-0774-0.
  • Gearing, David. W. On the Wings of a Gull - Percival and Hunting Aircraft. Stapleford, UK:Air-Britain (Historians), 2012, ISBN 978-0-85130-448-9
  • Grey, C.G. Jane's All the World's Aircraft 1938. London: David & Charles, 1972. ISBN 0-7153-5734-4.
  • Jackson, A.J. British Civil Aircraft 1919–1972, Volume III. London: Putnam, 1988. ISBN 0-85177-818-6.
  • Lewis, Peter. British Racing and Record-Breaking Aircraft. London: Putnam, 1970, ISBN 0-370-00067-6.
  • Percival, Robert. "A Portrait of Percival." Aeroplane Monthly, Vol. 12, No. 9, September 1984.
  • Silvester, John. "Percival Aircraft 1933-1954 (Parts 1-4)." Aeroplane Monthly, Vol. 11, No. 1–4, January–April 1983.