Title from title screen (viewed on Sept. 10, 2003)., "February 1996.", and "EPA/600/SR-95/161."
System requirements: Adobe Acrobat Reader required. and Mode of access: Internet from the EPA Office of Research and Development web site. Address as of 9/10/2003: http://www.epa.gov/ORD/WebPubs/projsum/600sr95161. pdf; current access available via PURL.