00497ca0 a2200205ua 45000010006000000050017000060070003000230080041000260200009000670400009000760410014000850820013000991000031001122450045001432600047001883000018002355040009002535410015002626500014002771986020180503180940.0ta160922s1984    ii     g     b000 u eng u  cNULL  aMAIN1 aenghNULL  a540bCHA  aChakravorty, BN  .eAuthor  aIndustrial chemistry / cBN Chakravorty.  aNew Delhi :bOxford& IBH Pub.Co. , c1984.  a300 ; cNULL.  aNULL  e15756       aChemistry