@misc{indiciaec0e9222d1b91,
  title = {Relationship between physical condition of the carbonate fraction and sediment environments: Northern Puerto Rico shelf},
  author = {O. H. Pilkey and E.I. Fierman and James V. A. Trumbull},
  year = {1979},
  doi = {10.1016/0037-0738(79)90074-5},
  url = {https://pubs.usgs.gov/publication/70012414},
  note = {Source identifier: 70012414}
}