@misc{indiciaec038695affad,
  title = {High-resolution marine geologic maps showing sediment distribution on the insular shelf off Luguillo, Puerto Rico},
  author = {William C. Schwab and R. W. Rodriguez and W. W. Danforth and M. H. Gowen and E.R. Thieler and T.F. O’Brien},
  year = {1996},
  doi = {10.3133/mf2276},
  url = {https://pubs.usgs.gov/publication/mf2276},
  note = {Source identifier: mf2276}
}