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| 005 | 20251114233039.0 | ||
| 008 | 251113s9999||||xx |||||||||||||| ||eng|| | ||
| 040 | _beng | ||
| 040 | _cIN-NITTTR | ||
| 041 | _aeng | ||
| 082 | _a621.385 A54T | ||
| 100 | _aAtkinson, J. | ||
| 245 | 0 |
_aTelephony : _b a detailed exposition of the telephone exchange systems of the british post office. / _cAtkinson, J. |
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_2ddc _cBK |
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_c11170 _d11170 |
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