@misc{indiciae49cd7276ef11,
  title = {Groundwater-Quality Survey of the South Coast Aquifer of Puerto Rico, April 2 through May 30, 2007},
  author = {Jose M. Rodriguez and Fernando Gómez-Gómez},
  year = {2009},
  doi = {10.3133/sim3092},
  url = {https://pubs.usgs.gov/publication/sim3092},
  note = {Source identifier: sim3092}
}