http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Ground water sampling for metals analyses
Superfund Technology Support Center for Ground Water (Robert S. Kerr Environmental Research Laboratory)
Robert W. Puls and Michael J. Barcelona.
Title from title screen (viewed on May 25, 2004).
Mode of access: Internet from the EPA web site. Address as of 5/25/2004: http://www.epa.gov/ada/download/issue/gwsamp2.pdf; current access available via PURL.