| 000 | 00569 a2200253 4500 | ||
|---|---|---|---|
| 001 | 99400 | ||
| 020 | _a | ||
| 041 | _aeng | ||
| 080 | _a621.396.66 Ben | ||
| 245 | _aShort-wave radio and the ionosphere : with special reference to everyday professional and amature problems of short-wave transmission and reception | ||
| 250 | _a2nd ed | ||
| 260 | _aLondon | ||
| 260 | _bIliffe | ||
| 260 | _c1950 | ||
| 300 | _a138 p. | ||
| 300 | _c21 cm | ||
| 490 | _a | ||
| 100 | _aBennington, T.W. | ||
| 700 | _a | ||
| 650 | _a | ||
| 650 | _a | ||
| 942 | _cBK | ||
| 942 | _2UDC | ||
| 999 |
_c59250 _d59250 |
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