00358nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001900084245006000103260003900163300000800202650001400210221030s9999    xx            000 0 und d  a8173194106  aEnglish  a105.23bSub  aV. Subramanian 2aA Text Book in Environmental Sciencecby V. Subramanian  bNarosa Pub. HouseaNew Delhic2002  a238  aChemistry