Clark, F. G. (1975). The story of the world's most advanced passenger aircraft. London: Phoebus Publishing Company.
Dyfyniad Arddull ChicagoClark, F. G. The Story of the World's Most Advanced Passenger Aircraft. London: Phoebus Publishing Company, 1975.
Dyfyniad MLAClark, F. G. The Story of the World's Most Advanced Passenger Aircraft. London: Phoebus Publishing Company, 1975.
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