Description
Item Description:Title from title screen (viewed on January 2, 2009).
"March 2007."
"EPA-420-F-06-061."
Electronic resource.
Physical Description:22 unnumbered pages : digital, PDF file.
Format:Mode of access: Internet from the EPA web site. Address as of 5/20/09: http://www.epa.gov/radiation/docs/402-f-06-061.pdf ; current access available via PURL.
Bibliography:Includes bibliographical references (page 17).