| 000 | 00414nam a2200157Ia 4500 | ||
|---|---|---|---|
| 008 | 240618s9999||||xx |||||||||||||| ||und|| | ||
| 020 | _aERNET | ||
| 040 | _aMAIN | ||
| 082 | _a335 | ||
| 100 |
_aCCITT _934692 |
||
| 245 | 0 | _aBLUE BOOK,VOLUME III,FASCICLE III.7: INTERGRATED SERVICES DIGITAL NETWORK (ISDN) GENERAL STRUCTURE AN | |
| 260 |
_bITU _c1989 _aGENEVA |
||
| 300 | _b352 | ||
| 500 | _aSC-021 | ||
| 942 | _cBK | ||
| 999 |
_c41638 _d41638 |
||