| 000 | 00525nam a22001577a 4500 | ||
|---|---|---|---|
| 008 | 230329b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_aD 681.324.001 _bM9 |
||
| 100 |
_aHelmers, Scott A _95708 |
||
| 245 |
_aData communications: _bA beginner's guide to concept and technology |
||
| 260 |
_aEnglewood Cliffs: _bPrentice Hall, _c1989 |
||
| 300 | _axiv, 302p. | ||
| 650 | _aData communications | ||
| 653 | _aCommunicating computers | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c16366 _d16366 |
||