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| 005 | 20251108170659.0 | ||
| 008 | 250721s9999 xx 000 0 eng d | ||
| 082 | 1 | 4 | _aR/621.38/B |
| 245 | 1 | 0 | _aBBC Engineering Division Monograph / |
| 264 | 1 |
_aLondon : _bB . B . C, _c[19-]. |
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| 300 | _a12vol : illus | ||
| 500 | _aEvery Volume Contains 5 nombers | ||
| 650 | 1 | 7 | _aElectric Engineering |
| 650 | 1 | 7 | _aElectronic Engineering |
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_2ddc _cREF |
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