@misc{indiciae346571fb31cb,
  title = {The oil and gas possibilities of the Quebrada Arenas anticline, Puerto Rico},
  author = {Watson Hiner Monroe},
  year = {1958},
  doi = {10.3133/ofr5869},
  url = {https://pubs.usgs.gov/publication/ofr5869},
  note = {Source identifier: ofr5869}
}