000 00288nam a2200121Ia 4500
008 240407s9999 xx 000 0 und d
020 _a9788175980433
100 _aProuty, R. W
245 0 _aHelicopter aerodynamics
260 _aMumbai
_bSterling Book House
300 _a174p.
942 _cBK
999 _c123
_d123