000 00346 a2200157 4500
003 OSt
040 _cIIT Kanpur
041 _aeng
082 _a621.38151
_bP539e
245 1 _aPhilips Pocket Book 1968 Electron Tubes Semiconductors
260 _c1968
300 _a405
650 _aElectron Tubes
650 _aSemiconductors
942 _cBK
999 _c458309
_d458309