00519nam a22001577i 4500001001000000005001700010008004100027082002600068100003600094245010000130250001100230260006000241300001700301650002500318020001800343SXC02443720260819093745.0260101s1998    ii            000 0 eng d  aCHE 628.3 CLE-S20222  aClesceri, Lenore S, Ed., et al.10aStandard methods for the examination of water and wastewater /cClesceri, Lenore S, Ed., et al.  a20 ed.  abAmerican Public Health Association, Washington,c1998  ap. ;c22 cm. 0aWastewater treatment  a9780875532400