Aerodynamics of the helicopter
Gessow, Alfred
Aerodynamics of the helicopter - [1st?] ed., 8th print. - College Park, MD College Park Press 1985
0-9669553-2-3
533.661 GES
Aerodynamics of the helicopter - [1st?] ed., 8th print. - College Park, MD College Park Press 1985
0-9669553-2-3
533.661 GES