| 000 | 00387nam a2200169Ia 4500 | ||
|---|---|---|---|
| 008 | 180424s9999 xx 000 0 und d | ||
| 084 | _a621.581 51 S1 | ||
| 100 | _a"Somer, A" | ||
| 245 | 0 | _aPhoto-Electric Cells | |
| 250 | _a\\194600ENGGPSX | ||
| 260 | _aMethuen | ||
| 260 | _b1946 | ||
| 260 | _cLondon | ||
| 300 | _a104p | ||
| 500 | _aincludes index and biblioraphy | ||
| 942 | _cBK | ||
| 999 |
_c2557 _d2557 |
||