Assessment of stream quality using biological indices at selected sites in the Delaware River basin, Chester County, Pennsylvania, 1981-97 (Q72083)

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Reif, A.G., 2002, Assessment of stream quality using biological indices at selected sites in the Delaware River basin, Chester County, Pennsylvania, 1981-97: U.S. Geological Survey Fact Sheet 2002–0116, 4 p., https://pubs.er.usgs.gov/publication/...
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Assessment of stream quality using biological indices at selected sites in the Delaware River basin, Chester County, Pennsylvania, 1981-97
Reif, A.G., 2002, Assessment of stream quality using biological indices at selected sites in the Delaware River basin, Chester County, Pennsylvania, 1981-97: U.S. Geological Survey Fact Sheet 2002–0116, 4 p., https://pubs.er.usgs.gov/publication/...

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