000 00477nam a2200169 a 4500
999 _c10814
_d10814
020 _a9788177540024
082 _a628.16RYA
100 1 _aRyan, William.
245 1 0 _aWater treatment and purification /
250 _a1St Edition.
260 _a[S.l.] :
_bMcGraw Hill,
_c1937.
300 _a1 v. (unpaged) ;
650 _aWater Purification
650 _aFeed-water purification
856 4 0 _uhttp://www.amazon.com/exec/obidos/ASIN/B000RAY770/chopaconline-20
942 _cBK