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Biological criteria : national program guidance for surface waters.

Author: United States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division.
Publisher: Washington, D.C. : U.S. Environmental Protection Agency, [1990]
Edition/Format:   Print book : National government publication : EnglishView all editions and formats
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Material Type: Government publication, National government publication, Internet resource
Document Type: Book, Internet Resource
All Authors / Contributors: United States. Environmental Protection Agency. Office of Water Regulations and Standards. Criteria & Standards Division.
OCLC Number: 21707968
Notes: "EPA-440/5-90-004"--Cover.
"April 1990"--Cover.
"Criteria and Standards Division."
"Office of Water Regulations and Standards."
Description: ix, 57 pages : illustrations ; 28 cm
Other Titles: National program guidance for surface waters

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