| 000 | 00650 a2200241 4500 | ||
|---|---|---|---|
| 001 | 286089 | ||
| 020 | _a | ||
| 041 | _aeng | ||
| 080 | _aLNASA TND 8327 : 1977 | ||
| 245 | _aUnified acquisition system for acoustic data | ||
| 250 | _a | ||
| 260 | _aWashington, D.C. | ||
| 260 | _bNational Aeronautics and Space Administration | ||
| 260 | _c1977 | ||
| 300 | _a28 p. | ||
| 300 | _c | ||
| 856 | _uNASA | ||
| 490 | _aNASA TND 8327 : 1977 | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _aNoise measurement system, Field noise measurement, Sonic-boom measurement system, Acoustic data acquisition system, Aircraft noise measurement system | ||
| 942 | _cPP | ||
| 942 | _2UDC | ||
| 999 |
_c245465 _d245465 |
||