@misc{indiciaed0b4d56b2380,
  title = {Assessment of stream quality using biological indices at selected sites in the Brandywine Creek basin, Chester County, Pennsylvania, 1981-97},
  author = {Andrew G. Reif},
  year = {2002},
  doi = {10.3133/fs11702},
  url = {https://pubs.usgs.gov/publication/fs11702},
  note = {Source identifier: fs11702}
}