http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
United States Environmental Protection Agency, Office of Policy.
Title from title screen (viewed on March 19, 2003).
System requirements: Adobe Acrobat Reader.
Mode of access: Internet from the EPA Web site. Address as of 3-19-03: http://yosemite.epa.gov/oar/globalwarming.nsf/UniqueKeyLookup/SHSU5BNNWD/$File/ccandcoldwaterfish.pdf; current access is available via PURL.