TY - RPRT TI - 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) AU - Michael J. Friedel AU - Carol A. Finn AU - John D. Horton PY - 2015 DO - 10.3133/ofr20131280c UR - https://pubs.usgs.gov/publication/ofr20131280C ID - ofr20131280C ER -