@misc{indiciaeb77f11377ba3,
  title = {Agua subterranea en Puerto Rico [Ground water in Puerto Rico]},
  author = {Ferdinand Quinones-Marquez and Jose Alicea-Ortiz},
  year = {1985},
  doi = {10.3133/ofr85642},
  url = {https://pubs.usgs.gov/publication/ofr85642},
  note = {Source identifier: ofr85642}
}