@misc{indiciae0cc272807893,
  title = {Geology and hydrogeology of the Caribbean Islands aquifer system of the Commonwealth of Puerto Rico and the U.S. Virgin Islands},
  author = {Robert A. Renken and W. C. Ward and I. P. Gill and Fernando Gómez-Gómez and Jesús Rodríguez-Martínez},
  year = {2002},
  doi = {10.3133/pp1419},
  url = {https://pubs.usgs.gov/publication/pp1419},
  note = {Source identifier: pp1419}
}