@misc{indiciae154adc234635,
  title = {Geologic maps of the southwestern Puerto Rico Parguera to Guanica insular shelf},
  author = {Jack Morelock and Elizabeth A. Winget and Carlos Goenaga},
  year = {1994},
  doi = {10.3133/i2387},
  url = {https://pubs.usgs.gov/publication/i2387},
  note = {Source identifier: i2387}
}