By Mallen Joseph   Dancik Paul   in Journal of the American Helicopter Society

ISSN:2161-6027|4|1|15-19

AHS International‎(1959)‎

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By McCormick B. W.   Mallen Joseph   in Journal of the American Helicopter Society

ISSN:2161-6027|2|3|49-55

AHS International‎(1957)‎

Access to resources Favorite 10.542161