Developing an index of biological integrity

Other Authors: United States. Environmental Protection Agency. Office of Water.
Format: Electronic
Language: English
Published: [Washington, D.C.] : United States Environmental Protection Agency, Office of Water, [1998]
Subjects:
Item Description: Mode of access: Internet from the EPA web site. Address as of 8/25/2004: http://www.epa.gov/owow/wetlands/wqual/bio%5ffact/fact5.html; current access available via PURL.
Title from title screen (viewed on Aug. 25, 2004)
"July 1998."
"EPA843-F-98-001e."
Format: Mode of access: Internet from the EPA web site. Address as of 8/25/2004: http://www.epa.gov/owow/wetlands/wqual/bio%5ffact/fact5.html; current access available via PURL.