| 000 | 00345nam a22000977a 4500 | ||
|---|---|---|---|
| 999 |
_c16269 _d16269 |
||
| 245 | _aIS 10776-4:1984-Methods of Measurement of Electro-acoustical Characteristics of Hearing Aids, Part 4: Hearing Aids with Bone Vibrator | ||
| 260 |
_aNew Delhi : _bBureau of Indian Standards (BIS), _c1984. |
||
| 300 | _a14 p. | ||
| 650 | _aHearing aids | ||
| 942 | _cST | ||