XH-20小亨利直升機 (Chinese Wikipedia)

Analysis of information sources in references of the Wikipedia article "XH-20小亨利直升機" in Chinese language version.

refsWebsite

Global rank Chinese rank

2web.archive.org

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1^st place

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821^st place

1aviationarchives.net

low place

low place

aviationarchives.net

McDonnell Model Numbers (PDF). McDonnell Douglas. July 1, 1974 [September 3, 2023]. （原始内容存档 (PDF)于2016-03-03）.

boeing.com

XH-20 Little Henry Research Helicopter. Boeing. [2009-12-20]. （原始内容存档于2009-12-17）.

web.archive.org

XH-20 Little Henry Research Helicopter. Boeing. [2009-12-20]. （原始内容存档于2009-12-17）.
McDonnell Model Numbers (PDF). McDonnell Douglas. July 1, 1974 [September 3, 2023]. （原始内容存档 (PDF)于2016-03-03）.