Howard's whirlybirds : Howard Hughes' amazing pioneering helicopter exploits
2014
224 S.
Book
English
Book Review: Howard's Whirlybirds — Howard Hughes' Amazing Pioneering Helicopter Exploits
Online Contents | 2013
Howard Hughes' Impromtu Beginning as a Helicopter Manufacturer
Online Contents | 2013
|SLUB | 2005
|Engineering Index Backfile | 1945
TIBKAT | 1991
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