@misc{indiciae2dbb47dd61b4,
  title = {Availability of water in the Mississippi embayment},
  author = {E. M. Cushing and E. H. Boswell and P. R. Speer and R. L. Hosman},
  year = {1970},
  doi = {10.3133/pp448a},
  url = {https://pubs.usgs.gov/publication/pp448A},
  note = {Source identifier: pp448A}
}