000 00229nam a2200097Ia 4500
008 230401s9999 xx 000 0 eng d
100 _aRAMAMURTI(M)
245 0 _aTHYrISISTORS AND THEIR COLLAMS
260 _bEWP
942 _2ddc
_cBTECH
999 _c3693
_d3693