| 000 | 00436nam a2200181Ia 4500 | ||
|---|---|---|---|
| 008 | 210210b1933 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aeng | ||
| 082 | _a535/48 | ||
| 100 | _aGREENWOOD (W) | ||
| 245 | _aTextbook of wireless telegraphy and telephony | ||
| 260 |
_a _bNot Mentioned _c1933 |
||
| 650 | _awireless | ||
| 650 | _aTextbook | ||
| 650 | _atelephony | ||
| 650 | _atelegraphy | ||
| 690 | _aElectricity | ||
| 906 | _a008666 | ||
| 999 |
_c126475 _d126475 |
||