McDonnell Douglas DC-9: Razlika med redakcijama

==Sklici in reference==

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* Becher, Thomas. ''Douglas Twinjets, DC-9, MD-80, MD-90 and Boeing 717''. The Crowood Press, 2002. ISBN 1-86126-446-1.

* "Super 80 For the Eighties". ''[[Air International]]'', Vol 18 No 6, June 1980. pp. 267–272, 292–296. ISSN 0306-5634.