| 000 | 00565nam a2200205 i 4500 | ||
|---|---|---|---|
| 001 | 22740 | ||
| 003 | BD-DhUET | ||
| 008 | 791203s1979 enka 001 0 eng | ||
| 020 | _a0906048044 | ||
| 040 |
_aDLC _cDLC _dBD-DhUET |
||
| 082 |
_a623.8 _bWEL/1976 |
||
| 100 | _aWelch, Samuel | ||
| 245 | 1 | 0 | _aSignalling in telecommunications networks |
| 250 | _a1st ed. | ||
| 260 |
_aNew York _bPeter Peregrinus _c1976 |
||
| 300 |
_axiii, 382 p. _bill. _c23 cm. |
||
| 490 | 1 | _aIEE telecommunications series ; 6 | |
| 650 | 0 | _aNetworks:Telecommunications | |
| 942 | _cGB | ||
| 999 |
_c22740 _d22740 |
||