00269nam a2200109Ia 4500100003300000654001800033245003600051260003600087082001600123300000800139546001200147  aDubey / G.K./ Joshi/ A etc.   aThyristorised  aThyristorised power controllers  bWiley easternaNew  Delhic1993  a621.3815287  a825  aENGLISH