@misc{indiciae2149f94d22f3,
  title = {Geology and ground-water resources of the Big Spring area, Texas},
  author = {Penn Poore Livingston and Robert R. Bennett},
  year = {1944},
  doi = {10.3133/wsp913},
  url = {https://pubs.usgs.gov/publication/wsp913},
  note = {Source identifier: wsp913}
}