@misc{indiciaec4d63e186322,
  title = {Assessment of stream conditions and trends in biological and water-chemistry data from selected streams in Chester County, Pennsylvania, 1981-97},
  author = {Andrew G. Reif},
  year = {2002},
  doi = {10.3133/wri024242},
  url = {https://pubs.usgs.gov/publication/wri024242},
  note = {Source identifier: wri024242}
}