@misc{indiciaece8fe31b9535,
  title = {Determination of benthic-invertebrate indices and water-quality trends of selected streams in Chester County, Pennsylvania, 1969-80},
  author = {C.R. Moore},
  year = {1987},
  doi = {10.3133/wri854177},
  url = {https://pubs.usgs.gov/publication/wri854177},
  note = {Source identifier: wri854177}
}