| 000 | 00446 a2200157 4500 | ||
|---|---|---|---|
| 020 | _a0810451263 | ||
| 082 |
_a004.6 _bHEL |
||
| 090 |
_c2942 _d3629 |
||
| 100 | _aHeld, Gilbert | ||
| 245 |
_aData communication components _bcharacteristics, operation, applications |
||
| 260 |
_aNew Jersey _bHayden book company _c1979 _g1979 |
||
| 300 |
_axii, 267p. _c24cm. |
||
| 650 | _aINTERFACING AND COMMUNICATIONS | ||
| 650 | _aCOMPUTER SCIENCE | ||
| 942 | _cL | ||
| 999 |
_c31982 _d31982 |
||