00275nam a2200109Ia 4500008004100000020001500041082001300056100001300069245002500082260004300107300001500150220610s9999    xx            000 0 und d  a8121927692  a540bJAI  aJain S K  aConceptual Chemistry  aNew DelhibS Chand & Company Ltdc2007  a1474 PbPB