| 000 | 00347nam a2200133Ia 4500 | ||
|---|---|---|---|
| 999 |
_c20616 _d20616 |
||
| 008 | 190711s9999 xx 000 0 und d | ||
| 020 | _a0863410227 | ||
| 082 | _a621.3842 R163 | ||
| 100 | _aRalphs, J, D. | ||
| 245 | 0 | _aPrinciples and Practice of Multi-Frequency Telegraphy | |
| 260 |
_aLONDON _bIEEE Press _c1985 |
||
| 300 | _a24X15 | ||
| 942 | _cBK | ||