Description
Item Description:Title from title screen (viewed on Nov. 16, 2006).
"May 2006."
"EPA-822-R-06-001."
Electronic resource.
Format:Mode of access: Internet from the EPA web site. Address as of 6/8/09: http://www.epa.gov/med/Prods%5FPubs/framework%5Fsabs%5F20060601.pdf ; current access available via PURL.
Bibliography:Includes bibliographical references (pages 85-94).