[Washington, D.C.] : United States Environmental Protection Agency, Office of Water, [1998]
Physical Details
176 pages : digital, PDF file
data file
OCLC
ocm64668219
Title from title screen (viewed on Mar. 14, 2006).
"February 1998."
"EPA 823-B-98-004."
Includes bibliographical references.
Mode of access: Internet from the EPA web site. Address as of 3/14/2006: http://www.epa.gov/waterscience/itm/total.pdf; current access available via PURL.