| 000 | 00399cam a2200157ua 4500 | ||
|---|---|---|---|
| 020 | _a81-203-1080-2 | ||
| 082 |
_a004.6 _bHEL/U |
||
| 100 | 0 | _aHeld, Gilbert | |
| 245 | 1 | 0 | _aUnderstanding data communications |
| 250 | _a4th ed. | ||
| 260 |
_aNew Delhi _bPrentice Hall _c1996 |
||
| 300 | _axvii,435p. | ||
| 500 | _aIncludes glossary, index and references. | ||
| 650 | 0 | _aComputer science | |
| 942 | _cBK | ||
| 999 |
_c2743 _d2743 |
||