00409nam a22001337a 4500008004100000020001500041050002100056100002900077245007400106250001200180260002600192300002700218650003000245171127b        xxu||||| |||| 00| 0 eng d  a8170351839  aQH 183 .C66 1998  aGautam, Ashutosh.d1998.  aConservation and Management of Aquatic Resources /cAshutosy, Gautam.  a1st ed.  aIndia :bDaya,c1998.  a246p. :bill. ;e24cm.  aWater quality management.