| 000 | 003350000a22001330004500 | ||
|---|---|---|---|
| 245 | _aTransmission planning of switched telephone networks | ||
| 110 | _aInternational Telecommunication Union | ||
| 260 |
_aGeneva _c1976 |
||
| 300 | _a2 v. | ||
| 500 | _avarious paging | ||
| 080 |
_a621.395.4 _bI6 |
||
| 041 | _aEN | ||
| 942 | _cBK | ||
| 999 |
_c103232 _d103232 |
||