00333nam a2200109Ia 4500008004100000082001500041100001600056245003800072260004200110630003500152650003600187211118s9999||||xx |||||||||||||| ||und||  a577bIYE-A  aIyer, C S P 0aAdvances in Environmental Science  bEducatinal PublishersaNewdelhic2000  xEcologyPost Graduate Reference  aLife SciencesvBiologyChemistry