| 000 | 00264 a2200073 4500 | ||
|---|---|---|---|
| 245 | 0 |
_aFundamental Principles of Ionospheric Transmission / _c. |
|
| 710 | 2 |
_aHis Majesty's Stationery Office. _eWydawca _4pbl |
|
| 260 |
_aLondon : _bHis Majesty's Stationery Office, _c1948. |
||
| 300 |
_a82 s.; _c24 cm. |
||
| 999 |
_c14373 _d14373 |
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