Description
Item Description:Title from title screen (viewed on Oct. 10, 2007).
"December 2006."
Electronic resource.
Physical Description:32 pages : digital, PDF file.
Format:Mode of access: Internet from the EPA web site. Address as of 10/10/2007: http://www.epa.gov/oms/boutique/420r06901.pdf ; current access available via PURL.