@misc{indiciae53b9f6b0d5a4,
  title = {Hydrochemistry of the south coastal plain aquifer system of Puerto Rico and its relation to surface water recharge},
  author = {Fernando Gomez-Gomez},
  year = {1991},
  url = {https://pubs.usgs.gov/publication/70171301},
  note = {Source identifier: 70171301}
}