http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
EPA protocol for the review of existing national primary drinking water regulations
Title from title screen (viewed on Sep. 29, 2005).
Mode of access: Internet from the EPA web site. Address as of 9/29/2005: http://www.epa.gov/safewater/standard/review/pdfs/support%5f6yr%5fprotocal%5ffinal.pdf; current access available via PURL.