@misc{indiciae7a26201fe254,
  title = {Animals as indicators of ecosystem responses to air emissions},
  author = {James R. Newman and R. Kent Schreiber},
  year = {1984},
  doi = {10.1007/bf01868030},
  url = {https://pubs.usgs.gov/publication/70194896},
  note = {Source identifier: 70194896}
}