Autogyro (Simple English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Autogyro" in Simple English language version.

Last modified: 23:00:14, 25 March 2023 (UTC)

Ref.Un. Ref.Website

Global rank Simple English rank

22books.google.com

3^rd place

4^th place

6^th place

3^rd place

11web.archive.org

1^st place

1^st place

archive.org (Global: 6^th place; Simple English: 3^rd place)

Wragg, David W. (1973). A Dictionary of Aviation (first ed.). Osprey. p. 147. ISBN 9780850451634.

books.google.com (Global: 3^rd place; Simple English: 4^th place)

George Galdorisi (2008). Leave No Man Behind: The Saga of Combat Search and Rescue. Voyageur Press. ISBN 978-0-7603-2392-2.
Trevor Homer (2007). The Book of Origins: The first of everything. Hachette Digital. ISBN 978-1-405-51610-5.

web.archive.org (Global: 1^st place; Simple English: 1^st place)

Goebel, Greg (1 Jun 2011). "European Helicopter Pioneers". Air Vectors. Archived from the original on 5 February 2012.