@misc{indiciaecfc325a90925,
  title = {Hydrologic significance of carbon monoxide concentrations in ground water},
  author = {Francis H. Chapelle and Paul M. Bradley},
  year = {2007},
  doi = {10.1111/j.1745-6584.2007.00284.x},
  url = {https://pubs.usgs.gov/publication/70029818},
  note = {Source identifier: 70029818}
}