"Samoloty budowa i konstrukcje." . . "Flugzeug Geschichte." . . "Aeronautical engineers Soviet Union Biography." . . "Sikorsky helicopter History." . . . . "Helikopter." . . "Helicopters." . . . . . . "The story of the winged-S. New chapters and illustrations on recent developments of the helicopter. An autobiography"@en . "The story of the Winged-S : an autobiography" . . "The Story of the winged-S : with new material on the latest development of the helicopter"@en . . "The story of the winged-S an autobiography"@en . . . "The story of the Winged-S late developments and recent photographs of the helicopter, an autobiography"@en . . . . . . "History"@en . "The story of the Winged-S. Late developments and recent photographs of the helicopter ... Revised and enlarged edition, etc"@en . . . . "The story of the Winged-S : new chapters and illustrations on recent developments of the helicopter, an autobiography" . . "Winged-S"@en . "Winged-S" . . . "Pamiętniki rosyjskie" . . "The story of the winged-S : an autobiography"@en . . "The story of the winged-s. with new material on the latest development of the helicopter. an autobiography" . "The story of the Winged-S; late developments and recent photographs of the helicopter, an autobiography" . . "The story of the winged-S; an autobiography"@en . . . "The story of the winged \"S\" : late developments and recent photographs of the helicopter : an autobiography" . . "Story of the winged-S"@en . . "The story of the Winged-S : late developments and recent photographs of the helicopter, an autobiography"@en . "The story of the Winged-S : late developments and recent photographs of the helicopter, an autobiography" . . . . . . . . "The story of the Winged-S, with new material on the latest development of the helicopter; an autobiography"@en . "De gevleugelde S : mijn leven voor vliegtuigen en helikopters" . . . . . . . . "Pamiętniki amerykańskie" . . . "The story of the Winged-S"@en . "The story of the Winged-S : with new material on the latest development of the heliocopter ; an autobiography" . "The story of the Winged-S : the autobiography of Igor I. Sikorsky"@en . . "The story of the winged-S"@en . . . "Biography"@en . . "The Story of the Winged-S : late developments and recent photographs of the helicopter. 1967 revised and enlarged edition. An autobiography by Igor I. Sikorsky, with many illustrations from the author's collection of photographs" . . . . . "The story of the winged-S : new chapters and illustrations on recent developments of the helicopter : an autobiography" . "The story of the Winged-S; late developments and recent photographs of the helicopter; an autobiography. With many illus. from the author's collection of photographs" . . . "The Story of the Winged S. The autobiography of Igor I. Sikorsky. With many illustrations from the author's collection of photographs"@en . . . "The story of the Winged-S. The autobiography of Igor I. Sikorsky, etc. [With plates, including portraits.]"@en . . "The story of the winged-S : late developments and recent photographs of the helicopter : an autobiography" . . . .