000 00271pam a2200121a 44500
082 _a621.3815
_bP932s
100 _aPridham, G. J.
245 1 _aSILICON GATE-CONTROLLED SWITCH
260 _aLondon
_bPitman
_c1966
300 _a52
964 _gCIRC
997 _a73008 C
999 _c442512
_d442512