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The Northrop Story 1929-1939

Richard Sanders Allen

出版	Schiffer Publishing, Limited, 1997
主題	Business & Economics / International / GeneralHistory / Military / GeneralHistory / Military / Aviation & SpaceTechnology & Engineering / Military ScienceTransportation / Aviation / General
ISBN	08874058519780887405853
URL	http://books.google.com.hk/books?id=3aDYAAAACAAJ&hl=&source=gbs_api

註釋

From flying wings to polar explorers, from air racers to air liners, here is the full story of the single-engine airplanes designed and constructed by Jack Northrop during aviation's golden age.