Le vol vertical
Subtitle: théorie générale des hélicoptères; les appareils à voilures tournantes de leurs origines à 1934.
Publisher: E. Blondel La Rougery
Published: 1934
Place of publication: Paris
Language: fre
Number of pages: 242
Subjects: Helicopters.; Autogiros.; Aeronautics -- History.
Notes: At head of title: Lt-colonel Lamé.