| 000 | 00306 a2200097 4500 | ||
|---|---|---|---|
| 020 | _a926103151X | ||
| 920 | _a92-61-03151-X | ||
| 245 | 0 |
_aCCITT Optical Fibres Systems Planning Guide / _c. |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
|
| 260 |
_aGeneva : _bITU, _c1989. |
||
| 300 |
_aVIII, 236 s.: _bil.; _c30 cm. |
||
| 999 |
_c1843 _d1843 |
||