| 000 | 00407 a2200073 4500 | ||
|---|---|---|---|
| 245 | 0 |
_aCCITT Plenary Assembly (Yellow Book) Geneva, 1980 : _bGeneral Recommendations on Telephone Switching and Signalling, Interface with the Maritime Service, Recommendations Q.1-Q.118 bis (Study Group XI) / _c. _nVol.VI-1 |
|
| 710 | 2 |
_aInternational Telecommunication Union. _eWydawca _4pbl |
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| 260 |
_aGeneva : _bITU, _c1981. |
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| 300 |
_aIX, 213 s.; _c30 cm. |
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| 999 |
_c13960 _d13960 |
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