000 00349nam a22001457a 4500
999 _c46501
_d46501
003 OSt
020 _a02535122
100 _aSmethurst, George
245 _aBasic Water Treatment for Application World-wide
250 _a2nd
260 _aDelhi
_bIBT Publisher
300 _a216p.
650 _aWater - Purification, Water-supply
942 _2ddc
_cBK