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082 _a621.38411
082 _bMAR
100 _aMARATHE S
245 0 _aRADIO PROBLEMS SIMPLIFIED
250 _n0
250 _n1979
260 _bMARATHE
365 _b12
650 _aELECTRONICS
942 _cREF
950 _CELECTRONICS
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