00337nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001900084245004500103260003200148300000900180650001400189221030s9999    xx            000 0 und d  a8174091033  aEnglish  a105.23bAgg  aO. P. Aggarwal 0aEngineering Chemistrycby O. P. Aggarwal  bKhanna PubaNew Delhic2001  a1030  aChemistry