@misc{indiciaecb35c1a6473c,
  title = {Geology and ground-water conditions in the lower valley of the Rio Elqui of Chile},
  author = {P.H. Jones},
  year = {1951},
  doi = {10.3133/ofr51122},
  url = {https://pubs.usgs.gov/publication/ofr51122},
  note = {Source identifier: ofr51122}
}