@misc{indiciaed19fc4f4f968,
  title = {National Water-Quality Assessment Program; the Mississippi Embayment},
  author = {Michael J. Mallory},
  year = {1994},
  doi = {10.3133/fs04794},
  url = {https://pubs.usgs.gov/publication/fs04794},
  note = {Source identifier: fs04794}
}