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001 MPKV018620
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100 _aStephered J
245 _aHigher Electrical Engineering
_cStephered J; Morton A H
246 _aHigher Electrical Engineering
260 _aLondon
_bELBS
365 _b25
700 _aMorton A H
700 _aSpence L F
700 _aStephered J
999 _c17687
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