| 000 | 00340pam a2200133a 44500 | ||
|---|---|---|---|
| 082 |
_aBTS-MONO _b5040 |
||
| 100 | _aHiggins,W H.C. | ||
| 245 | 1 | _aSURVEY OF BELL SYSTEM PROGRESS IN ELECTRONIC SWITCHING | |
| 260 |
_a _b _c1965 |
||
| 300 | _a61 | ||
| 500 | _aBound With Bts-Mono 5026-5039,5041-5050 | ||
| 964 | _gCIRC | ||
| 997 | _aTR18760 C | ||
| 999 |
_c403470 _d403470 |
||