Skycrane : Igor Sikorsky's last vision
McKenna, J.A.
Skycrane : Igor Sikorsky's last vision - - Reston American Institute of Aeronautics and Astronautics 2010 - xxi,115 p. 23 cm - Library of flight .
978-1-60086-756-9
Space Flight Engineering
Sikorsky, Igor Ivan, 1889-1972 , Sikorsky helicopter-History
629.135.4McK
Skycrane : Igor Sikorsky's last vision - - Reston American Institute of Aeronautics and Astronautics 2010 - xxi,115 p. 23 cm - Library of flight .
978-1-60086-756-9
Space Flight Engineering
Sikorsky, Igor Ivan, 1889-1972 , Sikorsky helicopter-History
629.135.4McK