Title from title screen (viewed on July 10, 2003).
"July 2001."
"EPA 542-R-01-010."
System Details
System requirements: Adobe Acrobat Reader.
Mode of access: Internet from the EPA Technology Innovation Office web site. Address as of 7/10/2003: http://www.epa.gov/swertio1/download/misc/fracrock%5fstate.pdf; current access available via PURL.