McDonnell Douglas DC-9 (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "McDonnell Douglas DC-9" in Simple English language version.

refsWebsite

Global rank Simple English rank

1flightglobal.com

223^rd place

819^th place

1,290^th place

431^st place

1web.archive.org

1^st place

1^st place

1,009^th place

842^nd place

boeing.com

"DC-9 airplane characteristics for airport planning" (PDF). Douglas aircraft company. June 1984.

faa.gov

rgl.faa.gov

"Type Certificate Data Sheet no. A6WE" (PDF). FAA. March 25, 2014. Archived from the original (PDF) on December 28, 2016. Retrieved January 12, 2019.

flightglobal.com

"Airliner price index". Flight International. 10 August 1972. p. 183.

web.archive.org

"Type Certificate Data Sheet no. A6WE" (PDF). FAA. March 25, 2014. Archived from the original (PDF) on December 28, 2016. Retrieved January 12, 2019.