| 000 | 00344nam a2200121Ia 4500 | ||
|---|---|---|---|
| 008 | 211209s1989 xx 000 0 und d | ||
| 041 | _aeng | ||
| 082 | _a004.6 N89 HEL/SAR | ||
| 100 | _aHELD, GILBERT | ||
| 245 | _aDATA COMMUNICATION : COMPREHENSIVE APPROACH | ||
| 260 |
_aNEW YORK _bMCGRAW-HILL PUBLISHING COMPANY LIMITED _c1989 |
||
| 300 | _a539 | ||
| 999 |
_c25009 _d25009 |
||