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| 008 | 190711s9999 xx 000 0 und d | ||
| 020 | _a0131984667 | ||
| 082 | _a621.38195404 B627 | ||
| 100 | _aBLACK,U | ||
| 245 | 0 | _aDATA NETWORKS CONCEPTS,THEORY AND PRACTICE | |
| 260 |
_aNEW JERSEY _bPrentice Hall _c1989 |
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| 300 | _a24X18 | ||
| 942 |
_cBK _2DDC |
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| 999 |
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