000 00318nam a2200121Ia 4500
008 220201s1986 xx 000 0 eng d
041 _aENG
100 _aOPTNER STANFORD, L
245 0 _aTHYRISTORISEL POWER CONTROLLERS
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1986
300 _a825
942 _2ddc
999 _c58949
_d58949