How helicopters are made
By: by David C. Cooke.
Edition: [Rev. ed.]
Publisher: Dodd, Mead
Published: 1968
Place of publication: New York
Language: eng
Number of pages: 64
Subjects: Helicopters -- Juvenile literature.; Helicopters -- Design and construction.
Description: Describes how a helicopter is conceived, designed, manufactured, and taken on its first flight.