| 000 | 00563nam a22001697a 4500 | ||
|---|---|---|---|
| 005 | 20210216110128.0 | ||
| 008 | 210216b xxu||||| |||| 00| 0 eng d | ||
| 040 | _cIIT Kanpur | ||
| 041 | _aeng | ||
| 100 | _aHolm, Raymond G. | ||
| 245 |
_aAcoustic radiation patterns for a source in a hard walled unlanged circular duct [NASA TN D-7360] _cRaymond G. Holm and William E. Zorumski |
||
| 260 |
_aWashington,/D.C. _bNational Aeronautics and Space Administration _c1973 |
||
| 300 | _a18p | ||
| 650 | _aRadiation | ||
| 700 | _aZorumski, William E. | ||
| 942 | _cREF | ||
| 999 |
_c564084 _d564084 |
||