| 000 | 00377nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 230524s9999 xx 000 0 und d | ||
| 050 | _a TK5105.5.U5 | ||
| 245 | 0 | _aUnderstanding computers: communications | |
| 260 | _aAmsterdam | ||
| 260 | _c1986 | ||
| 300 | _a128p. | ||
| 300 | _c29cm. | ||
| 700 | _aill. | ||
| 942 | _2Library of Congress Classification | ||
| 942 | _cBook | ||
| 999 |
_c12298 _d12298 |
||