@misc{indiciaef7516aab6f12,
  title = {Hydrogeology of the Islamic Republic of Mauritania},
  author = {Michael J. Friedel and Carol A. Finn},
  year = {2008},
  doi = {10.3133/ofr20081136},
  url = {https://pubs.usgs.gov/publication/ofr20081136},
  note = {Source identifier: ofr20081136}
}