Bell YOH-4: Perbedaan antara revisi

* Spenser, Jay P. "Bell Helicopter". ''Whirlybirds, A History of the U.S. Helicopter Pioneers''. University of Washington Press, 1998. ISBN 0-295-98058-3.

 

{{Commons|OH-58 Kiowa}}

* [http://www.globalsecurity.org/military/systems/aircraft/oh-4.htm HO-4/OH-4 page on GlobalSecurity.org]

{{Bell Aircraft}}

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[[Kategori:Pesawat terbang Bell]]

[[Kategori:Helikopter militer]]