| 000 | 00363nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 140110s9999 xx 000 0 und d | ||
| 082 | _a4.6 HEL | ||
| 100 | _aHELD,GILBERT | ||
| 245 | _aUNDERSTANDING DATA COMMUNICATIONS | ||
| 260 |
_bPHI _aNEW DELHI _c1994 |
||
| 300 | _axvii,435 | ||
| 365 | _cRs | ||
| 500 | _aNETWORK | ||
| 650 | _aDATA COMMUNICATIONS,NETWORKS | ||
| 999 |
_c207324 _d207324 |
||