@misc{indiciaee9acb879960f,
  title = {The age of the Puerto Rico Trench},
  author = {W. H. Monroe},
  year = {1968},
  doi = {10.1130/0016-7606(1968)79[487:taotpr]2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70207397},
  note = {Source identifier: 70207397}
}