@misc{indiciae2b5d5913d7bb,
  title = {Potentiometric surface of the Wilcox-Carrizo aquifer; Bienville, Red River, and northern Natchitoches, and southern Webster Parishes, Louisiana},
  author = {G.N. Ryals},
  year = {1981},
  doi = {10.3133/ofr801179},
  url = {https://pubs.usgs.gov/publication/ofr801179},
  note = {Source identifier: ofr801179}
}