000 00265nam a2200121Ia 4500
008 220821s2009 xx 000 0 eng d
100 _aGRAY, N. F.
245 0 _aWATER TECHNOLOGY
250 _a2ND
260 _bELSEVIER
_c2009
300 _a645
942 _2ddc
_cBTECH
999 _c1881
_d1881