@misc{indiciae00ae0e0a9e37,
  title = {Potentiometric surface of the alluvial aquifer and hydrologic conditions in the Guayama quadrangle, Puerto Rico, March 1986},
  author = {Rafael Dacosta and Fernando Gómez-Gómez},
  year = {1987},
  doi = {10.3133/wri874162},
  url = {https://pubs.usgs.gov/publication/wri874162},
  note = {Source identifier: wri874162}
}