@misc{indiciaedea474d1a517,
  title = {A new tool to assess groundwater resources in the Mississippi embayment},
  author = {Brian R. Clark and David A. Freiwald},
  year = {2011},
  doi = {10.3133/fs20113115},
  url = {https://pubs.usgs.gov/publication/fs20113115},
  note = {Source identifier: fs20113115}
}