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024 _a39551
037 _cTextual
040 _aCSL
_beng
_cCSL
041 _aeng
082 _aD65:194:4, K4
100 _aKetchum D J
245 0 _aPulse and switch-on circuits
260 _c1964
300 _ap.
_ccm.
490 _aMcGraw Hill techinical education series
650 _aElectronic
700 _a Alvarez E C
942 _hD65:194:4, K4
_cTEXL
_2CC
999 _c89383
_d89383