000 00458 a2200181 4500
020 _a8177540025
082 _a628
_bRYW
100 _aRyan William,J.
_9103625
245 _aWater treatment and purification
_cWilliam J. Ryan
260 _aJodhpur:
_bAgrobios,
_c2007.
300 _a270p.
500 _aInclude Index
504 _aHP
546 _aeng
650 _aWater-purification
_9103626
650 _aWater quality management
_9103627
942 _cBK
999 _c35913
_d35913