| 000 | 00391pam a2200133a 44500 | ||
|---|---|---|---|
| 082 |
_aNASA _bTN D-7417 |
||
| 100 | _aHeyman,Joseph S | ||
| 245 | 1 | _aULTRASONIC SIGNAL ENHANCEMENT BY RESONATOR TECHNIQUES | |
| 260 |
_a _bNasa, Washington, D.C. _c1973 |
||
| 300 | _a18 | ||
| 500 | _aBound With Nasa Tn D-7400-16,7418-19 Lack No.7404,7407,7411-12,7414 | ||
| 964 | _gCIRC | ||
| 997 | _aTR12273 C | ||
| 999 |
_c396589 _d396589 |
||