000			00449nam a22001697a 4500
005			20230711062732.0
008			230711b |||||||| |||| 00| 0 eng d
020			_a81-7648-454-7
041			_aeng
082			_a574.5263 _bKUM/A
100			_aKumar, Arvind
245			_aAquatic ecosystems _c/by Arvind Kumar
260			_aNew Delhi _bAPH Publishing _c2003
300			_axi,437p.
650			_aWater--Pollution _xEcosystem management
942			_cBK
999			_c19233 _d19233