000 00308nam a2200121Ia 4500
008 230222s9999 xx 000 0 und d
082 _a621.3815287
100 _aDubey G K
245 0 _aThyristorised Power Controllers
250 _a1
260 _bNew Age International Pvt Ltd, New Delhi
_c2003
942 _cBK
999 _c8609
_d8609