| 000 | 00342nam a22001337a 4500 | ||
|---|---|---|---|
| 999 |
_c65621 _d65621 |
||
| 020 | _a0809475669 | ||
| 082 | _aR 005.8 C765c 1990 | ||
| 100 | _aConstable, George | ||
| 245 | _aComputer security | ||
| 260 |
_aNew Jersey _bTime - Life Books _c1990 |
||
| 300 | _a128 p. illus., photos | ||
| 650 | _aComputers - Access control | ||
| 942 |
_2ddc _cBK |
||