00257nam a2200109Ia 4500100002000000490000700020654001600027245004100043260004300084300000800127546001200135  aDesphande/S.P.   vII  aMathematics  aMathematics for polytechnic students  bPune vidyarthi griha prak.aPunec1991  a558  aENGLISH