@misc{indiciae71593c889250,
  title = {Electrical analog model study of water in the Yabucoa Valley, Puerto Rico; Phase 1, collecting preliminary data and assembling available data},
  author = {Robert B. Anders},
  year = {1971},
  doi = {10.3133/ofr715},
  url = {https://pubs.usgs.gov/publication/ofr715},
  note = {Source identifier: ofr715}
}