| 000 | 00382nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 241225s9999 xx 000 0 und d | ||
| 020 | _a8131708721 | ||
| 082 |
_a621.382 _bHEL |
||
| 100 | _aHeld, Gilbert. | ||
| 245 | 0 | _aUnderstanding dat communications | |
| 260 |
_aDelhi : _bPearson Education International, _c1994 |
||
| 300 | _a765. | ||
| 365 | _a299 | ||
| 650 | _aApplied physics | ||
| 999 |
_c33462 _d33462 |
||