00334nam a2200121Ia 4500008004000000020001800040082001600058100001700074245002800091260003600119300001100155650004600166210210b2000   xxu||||| |||| 00| 0 eng d  a81 7648 214 5  a363.73 NARE  aNARAYAN (B).  aEnvironment management.  aNew Delhi.bNot Mentionedc2000  avi,320  aAquatic Atmosphere Biotic Human Ecology