000 00298pam a2200133a 44500
082 _a629.535
_bYo8h
100 _aYoung, Raymond A.
245 1 _aHELICOPTER ENGINEERING
260 _aN. Y.
_bRonald Press
_c1949
300 _a255
650 _aHelicopters
964 _gCIRC
997 _a53472 C
999 _c440179
_d440179