| 000 | 00604nam a2200193Ia 4500 | ||
|---|---|---|---|
| 919 | _a024749 | ||
| 020 | _a0471018651 | ||
| 082 |
_a621.3854 _bN76 |
||
| 100 | _aFlowers, T. H. | ||
| 245 |
_aIntroduction to exchange systems _b _cby T. H. Flowers. |
||
| 260 |
_aLondon _bJohn Wiley & Sons _c1976 |
||
| 300 | _axvii, 326p. | ||
| 690 | _aTelephone stations | ||
| 999 |
_c23441 _d23441 |
||