Description
Item Description:Title from title screen (viewed on July 2, 2008).
"August 2007."
Electronic resource.
Physical Description:vi, 46 pages : digital, PDF file.
Format:Mode of access: Internet from the NIOSH web site. Address as of 7/2/08: http://www.cdc.gov/niosh/docs/2007-122/pdfs/2007-122-full.pdf ; current access is available via PURL.
Bibliography:Includes bibliographical references.