960 resultados para river basin
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Bibliography: p. 110.
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Includes bibliography.
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Mode of access: Internet.
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Bibliography: p. 37.
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Bibliography: p. 61-62.
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"September 1988."--Cover.
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"February 1988."--Cover.
An assessment of the water quality of the Rock River Basin derived from a biological investigation /
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"Prepared for the Illinois Environmental Protection Agency."
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"IEPA/WPC/89-212."--Cover.
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"March 1997."
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"February 1988"--Cover.
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"IEPA/WPC/95-013."--Cover.
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Performing organization: Illinois Environmental Protection Agency, Bureau of Water, Division of Water Pollution Control.
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"IEPA/BOW/00-001"--Cover.
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"IEPA/WPC/89-105."--Cover.