Bell YOH-4 (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Bell YOH-4" in Spanish language version.

refsWebsite

Global rank Spanish rank

1^st place

low place

low place

helicoptermuseum.org

Aastad, Andy. "The Introduction to the JetRanger". Archivado el 10 de septiembre de 2008 en Wayback Machine. Rotor Magazine. Helicopter Association International. Winter 2006-2007. Accessed on 5 April 2009.

Remington, Steve."The Cessna CH-1 Helicopter". CollectAir.com
Beechy, Robert. "U.S Army Aircraft Acquisition Programs". Uncommon Aircraft 2006. 18 November 2005. Accessed on 19 September 2006.
Spangenberg, George A. George A. Spangenberg Oral History. www.spangenberg.org. Judith Spangenberg-Currier, ed. pp.187-190. Accessed on 29 April 2008.
Aastad, Andy. "The Introduction to the JetRanger". Archivado el 10 de septiembre de 2008 en Wayback Machine. Rotor Magazine. Helicopter Association International. Winter 2006-2007. Accessed on 5 April 2009.
«American Helicopter Museum: Bell 206 JetRanger». Archivado desde el original el 17 de marzo de 2008.