00590nam a2200169 a 4500003000200000005001700002008004100019050002600060100002800086245007000114260009000184300004000274504004100314650002500355650001900380650002100399020250404134412.0071126s19uu    xx            00    eng d  aPHS TD 695b.S26 2007  aSantos, Rodson Jacob L.  aPurification  method and water quality /cRodson Jacob L. Santos.  aLas Piñas City, Philippines :bSouthville International School and Colleges,c2007.  a66 pages :billustrations ;c28 cm.  aIncludes bibliographical references.  aWaterxPurification.  aWater quality.  aWaterxAnalysis.