00321nam a2200133Ia 4500008004100000041000800041082001700049100001500066245003500081260003300116300000800149365001500157700001500172230718s9999    xx            000 0 und d  aeng  a621.317bDAT  aDatta S.K.  aPower Electronics And Controls  c1989bPrentice Hall Of India  a196  cRs.b49.00  aDatta S.K.