A Compendium of Aviation and Aerostation, Balloons, Dirigibles and Flying-machines Hermann Hoernes Published: 1911 Total Pages: 216 Get eBook
An Introduction to Muscle Powered Ultra-light Gas Blimps Robert J. Rechs Published: 1998-11-01 Total Pages: 220 Get eBook
Journal of the Military Service Institution of the United States Military Service Institution of the United States Published: 1914 Total Pages: 558 Get eBook