TY  - GEN
AU  - Prouty, Ray 
TI  - Helicopter aerodynamics : vol. I: Ray Prouty's rotor and wing columns 1979-1992
SN  - 9780557089918
PY  - 2004///
CY  - Lebanon
PB  - Eagle eye solutions
KW  - HELICOPTERS-Aerodynamics
ER  -