@misc{indiciaef06e8e2c6f90,
  title = {Hydrogeologic map of the Islamic Republic of Mauritania (phase V, deliverable 56), Synthesis of hydrologic data (phase V, deliverable 57), and chemical hydrologic map of the Islamic Republic of Mauritania (added value)},
  author = {Michael J. Friedel and Carol A. Finn and John D. Horton},
  year = {2015},
  doi = {10.3133/ofr20131280c},
  url = {https://pubs.usgs.gov/publication/ofr20131280C},
  note = {Source identifier: ofr20131280C}
}