http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Analytical methods support document for arsenic in drinking water
Office of Ground Water and Drinking Water.
System requirements: Adobe Acrobat Reader.
Mode of access: Internet from the EPA web site. Address as of 03/21/02: http://www.epa.gov/safewater/ars/methods.pdf; current access is available via PURL.