@misc{indiciaedb15dff5747b,
  title = {System for implementing comprehensive air pollution control programs.},
  author = {D R Smith and N G Edmisten and D J DeRoeck},
  year = {1972},
  doi = {10.1080/00022470.1972.10469732},
  url = {https://pubmed.ncbi.nlm.nih.gov/4636308/},
  note = {Source identifier: 4636308}
}