@misc{indiciaeb3c4be404b53,
  title = {Reconnaissance of ground-water quality in the Manati Quadrangle, Puerto Rico, August-November 1992},
  author = {C. E. Conde-Costas and G. A. Rodriguez-Rodriguez},
  year = {1996},
  doi = {10.3133/ofr96628},
  url = {https://pubs.usgs.gov/publication/ofr96628},
  note = {Source identifier: ofr96628}
}