Não informado. (1909). Flight: Aircraft, spacecraft, missiles. Royal Aero Club of the United Kingdom.
Chicago-referens (17:e uppl.)Não informado. Flight: Aircraft, Spacecraft, Missiles. London: Royal Aero Club of the United Kingdom, 1909.
MLA-referens (8:e uppl.)Não informado. Flight: Aircraft, Spacecraft, Missiles. Royal Aero Club of the United Kingdom, 1909.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.