| 000 | 00354nam a2200133Ia 4500 | ||
|---|---|---|---|
| 100 | _aHalsall, Fred | ||
| 020 | _a0-201-56506-4 | ||
| 250 | _a3rd ed | ||
| 942 | _cBK | ||
| 245 | _aData communications, computer networks and open systems 3rd ed | ||
| 260 |
_aAddison-Wesley publishing company, England _c1992 |
||
| 082 | _a001.64404 Hal | ||
| 300 | _axi,772 | ||
| 999 |
_c36790 _d36790 |
||