@misc{indiciaeba06fadf7a67,
  title = {Reconnaissance of the water resources of the central Guanajibo Valley, Cabo Rojo, Puerto Rico},
  author = {Robert B. Anders},
  year = {1968},
  doi = {10.3133/ofr682},
  url = {https://pubs.usgs.gov/publication/ofr682},
  note = {Source identifier: ofr682}
}