@misc{indiciae1703bd489740,
  title = {Significance of ground-water chemistry in performance of North Sahara Tube wells in Algeria and Tunisia},
  author = {Frank Eldridge Clarke and Blair F. Jones},
  year = {1972},
  doi = {10.3133/wsp1757m},
  url = {https://pubs.usgs.gov/publication/wsp1757M},
  note = {Source identifier: wsp1757M}
}