00329nam a2200121Ia 4500008004100000082001500041100001800056100001600074245007100090260002800161300001000189650000800199060110s9999    xx            000 0 und d  a577bJOS/E  aJOSEPH,Kurian  aNagendran,R  aEssentials of Environmental studiescKurian Joseph and R.Nagendran  bPearson educationc2004  a503p.  a577