| 000 | 00604nam a2200193Ia 4500 | ||
|---|---|---|---|
| 919 | _a123955 | ||
| 010 | _a67-22235 | ||
| 082 |
_a621.384151 _bN67 |
||
| 245 |
_aHigh frequency radio communication with emphasis on polar problems _b _ced. by Finn Lied |
||
| 260 |
_aEngland _bTechnivision _c1967 |
||
| 300 | _avi, 130p. | ||
| 690 | _aHigh frequency; Radio communication; Ionospheric; | ||
| 700 | _aLied, Finn., ed. | ||
| 999 |
_c119363 _d119363 |
||