| 000 | 00789pam a2200253a 44500 | ||
|---|---|---|---|
| 003 | OSt | ||
| 005 | 20210303163726.0 | ||
| 008 | 210226b xxu||||| |||| 00| 0 eng d | ||
| 040 | _cIIT Kanpur | ||
| 041 | _aeng | ||
| 082 |
_aNASA _bCR-2043 |
||
| 245 | 1 |
_aACCEPTABILITY OF VTOL AIRCRAFT NOISE DETERMINED BY ABSOLUTE SUBJECTIVE TESTING[NASA CR-2043] _cHarry Sternfeld ...[et al.] |
|
| 260 |
_bNASA _c1972 _aWashington, D. C. |
||
| 300 | _avi, 84p | ||
| 440 | _aNational Aeronautics and Space Administration (NASA) | ||
| 500 | _aBound With NASA CR-2041-45( Bound Acc. No. 101576) | ||
| 650 | _aAircraft noise | ||
| 650 | _aVTOL noise | ||
| 700 | _aSternfeld, Harry | ||
| 700 | _aHinterkeuser, Ernest G. | ||
| 700 | _aHeckman, Roy B. | ||
| 700 | _aDavis, Jerry | ||
| 942 | _cBK | ||
| 999 |
_c392978 _d392978 |
||