@misc{indiciae4e75473e1ed4,
  title = {The ground-water supplies of the El Paso area, Texas},
  author = {A.N. Sayre},
  year = {1940},
  doi = {10.3133/ofr4016},
  url = {https://pubs.usgs.gov/publication/ofr4016},
  note = {Source identifier: ofr4016}
}