| 000 | 00364nam a2200145Ia 4500 | ||
|---|---|---|---|
| 008 | 180710s9999 xx 000 0 und d | ||
| 020 | _a247506 | ||
| 082 |
_a551.514 _bCHE |
||
| 100 | _aChestnov, F.I. | ||
| 245 | 4 | _aThe ionosphere and its riddles | |
| 260 |
_aMoscow _bForeign Languages pub. _c1956 |
||
| 300 | _a62 p. | ||
| 650 | _aUpper atmosphere | ||
| 942 | _cS | ||
| 999 |
_c84635 _d84635 |
||