Balloonist.G. 8. 1911. No. 4. April

Air Prig it: Scientific-Popul.and silt.Journal.-St. Petersburg, 1903-1917.-.1. The people (collection).Electronic copy source: PBOriginal storage place: Military Historical LibraryG. 8. 1911. No. 4. April: organ imp.All -Russian.Aero club.- Type.Usmanova, 1911. -[118] p.Section.pag.: Damn., Table, il., Schemes .. -Part of the text on the fr.ulcer.Bibliogr.In the text and subscription.Note..1. The people (collection).Electronic copy source: PBOriginal storage place: Military Historical Library