@misc{indiciae9de37c77c4ec,
  title = {Potentiometric surface of the alluvial aquifer and hydrologic conditions in the Salinas quadrangle, Puerto Rico, March 1986},
  author = {Vicente Quinones-Aponte and Fernando Gómez-Gómez},
  year = {1987},
  doi = {10.3133/wri874161},
  url = {https://pubs.usgs.gov/publication/wri874161},
  note = {Source identifier: wri874161}
}