00266nam a2200133Ia 4500100001600000650001400016250000600030366000700036245002800043260003300071082000800104300000800112546001200120  aSindhu/P.S   aChemistry  a2  f20  aEnvironmental Chemistry  bNew  Age  Int (P)  Ltdc2010  bSIN  a404  aENGLISH