| 000 | 00399nam a2200145Ia 4500 | ||
|---|---|---|---|
| 005 | 20250114180038.0 | ||
| 008 | 250113s9999 xx 000 0 und d | ||
| 041 | _aeng | ||
| 082 |
_bG0 _aC3m73:N22 |
||
| 245 | _aBell Telephone System: Techincla Pub. : Monograph: B | ||
| 260 |
_c1958 _bBell Tele. Laboratories _aNew York |
||
| 365 | _cRs. | ||
| 440 | _aMonograph. No.:3098-3113 | ||
| 650 | _aC3m73:N22 | ||
| 999 |
_c31818 _d31818 |
||