00336nam a22001217a 4500082001400000100000900014245002600023260003100049300001200080942000700092999001700099952009800116  a621.31SON  aSoni  aElectrical Technology  aDelhi:bDhanpatrai,c1988.  a569p. ;  cBK  c15420d15420  00104070aQUESTCLbQUESTCLd2016-05-12g84.00o621.31SONp14185r2016-05-12w2016-05-12yBK