000 00320nam a2200121Ia 4500
008 220201s1991 xx 000 0 eng d
041 _aENG
100 _aI.S:6161-1971
245 0 _aCHARACTERISTICS CURVES OF THE THYRESTOR
260 _aLONDON
_bTHAMES AND HUDSON PUBLISHING COMPANY
_c1991
300 _a61
942 _2ddc
999 _c57308
_d57308