@misc{indiciae6f07d661e2f9,
  title = {Reconnaissance of the ground-water resources of Vieques Island, Puerto Rico},
  author = {Sigfredo Torres-Gonzalez},
  year = {1989},
  doi = {10.3133/wri864100},
  url = {https://pubs.usgs.gov/publication/wri864100},
  note = {Source identifier: wri864100}
}