00689cam a2200217 a 4500020002800000040000800028082001700036100002100053245004500074250001400119260003700133300003500170650002900205650002800234650002600262650002500288700002200313700002000335856006200355856005400417  a0070549788 (alk. paper)  cDLC00a628 HIL 19941 aSawyer, Clair N.10aChemistry for environmental engineering.  a4th ed. /  aNew York :bMcGraw-Hill,cc1994.  axiii, 658 p. :bill. ;c25 cm. 0aEnvironmental chemistry. 0aEnvironmental chemistry 0aSanitary engineering. 0aSanitary engineering1 aMcCarty, Perry L.1 aParkin, Gene F.42uhttp://www.loc.gov/catdir/description/mh022/94000261.html41uhttp://www.loc.gov/catdir/toc/mh022/94000261.html