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| 008 | 210219s9999||||xx |||||||||||||| ||und|| | ||
| 082 |
_a1.64404 _bH474U |
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| 100 | _aHeld, Gilbert. | ||
| 245 | 0 |
_aUnderstanding data communications. _c Gilbert.Held |
|
| 260 |
_aNew Delhi _bPearson _c2003 |
||
| 300 | _axv,765 | ||
| 942 | _cBK | ||
| 950 | _o001.64404 H474U | ||
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_c32687 _d32687 |
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