| 000 | 00537nam a22001577a 4500 | ||
|---|---|---|---|
| 008 | 230317b |||||||| |||| 00| 0 eng d | ||
| 040 |
_aNational Science Library _cNational Science Library |
||
| 080 |
_aD 621.395.212''1925/1975'' _bM2 |
||
| 245 |
_aHistory of engineering and science in the bell system: _bSwitching technology (1925-1975) |
||
| 260 |
_aIndianapolis: _bAT&T Bell Laboratories, _c1982 |
||
| 300 | _axiv, 639p. | ||
| 650 | _aTelecommunication | ||
| 653 | _aElectronics | ||
| 700 | _aMillman, S (Ed.) | ||
| 942 |
_2udc _cBK |
||
| 999 |
_c10819 _d10819 |
||