Description
Item Description:Title from title screen (viewed May 14, 2009).
"September 2004."
"EPA/600/R-04/184."
Electronic resource.
Physical Description:271 unnumbered pages : digital, PDF file.
Format:Mode of access: Internet from the EPA web site. Address as of 5/14/09: http://www.epa.gov/nrmrl/pubs/600r04184/600r04184.pdf ; current access available via PURL.