@misc{indiciae5a4c9551a704,
  title = {The Clean Air Act: its relation to fish and wildlife resources},
  author = {Michael L. Avery and R. Kent Schreiber},
  year = {1979},
  url = {https://pubs.usgs.gov/publication/fwsobs76\_20\_8},
  note = {Source identifier: fwsobs76\_20\_8}
}