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| 003 | CGECLib | ||
| 005 | 20231211184157.0 | ||
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| 040 | _aCGECLib | ||
| 041 | _aeng | ||
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_a621.385 _bBEL/D |
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| 100 | _aJ. C. Bellamy | ||
| 245 | 0 | _aDigital Telephony | |
| 250 | _a2 Ed. | ||
| 260 |
_aNew Delhi _bWiley _c2000 |
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| 300 |
_bPaperback _axxv,643 |
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| 942 | _cBK | ||
| 999 |
_c4215 _d4215 |
||