Books on 'Aeronautics, Commercial -- United States':
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'Aeronautics, Commercial -- United States' subject
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Why?
Why? Why has America no rigid airships? A study of the characteristics of large ocean-crossing rigid airships, leading up to the question, Why does not American use all three, the dirigible, the airplane and the steamship, to provide this country with the best possible transportation system?
By P. W. Litchfield and Hugh Allen; foreword by Cheryl Johnson
Publisher: [Riverside, Conn. : 7 C's Press, 1976?]
ISBN: 0911962174
DDC: 629.13325
Edition: 6.00
