@misc{indiciae70f3334ecc8e,
  title = {Alaska ground-water quality},
  author = {R. J. Madison and T.J. McElhone and Chester Zenone},
  year = {1987},
  doi = {10.3133/ofr87712},
  url = {https://pubs.usgs.gov/publication/ofr87712},
  note = {Source identifier: ofr87712}
}