Igor Sikorsky; his three careers in aviation /

A biography of the aeronautical engineer whose achievements include the multi-motored airplane and the practical helicopter.

Bibliographic Details

Main Author:	Delear, Frank J.
Format:	Book
Language:	English
Published:	New York : Dodd, Mead, [1969]
Subjects:	Sikorsky, Igor Ivan, > 1889-1972. Aeronautics > Biography.