@misc{indiciaefdf0158979de,
  title = {Structural geology of the Muertos insular shelf, Puerto Rico},
  author = {L. E. Garrison},
  year = {1969},
  doi = {10.3133/ofr69103},
  url = {https://pubs.usgs.gov/publication/ofr69103},
  note = {Source identifier: ofr69103}
}