por Mihelcic, James R [autor,, editor] | Zimmerman, Julie Beth [autor,, editor] | Zhang, Qiong | Stuart, Amy L | Milke, Mark W | Whitman, Brian E | Penn, Michael R | Auer, Martin T | Hand, David W | Honrath, Richard E | Urban, Noel R.
por Crittenden, John C [autor] | Trussell, R. Rhodes [autor] | Hand, David W [autor] | Howe, Kerry J [autor] | Tchobanoglous, George [autor] | Borchardt, James H [colaborador].