@misc{indiciae3b4ebe037a16,
  title = {Sea Floor off San Diego, California},
  author = {Peter Dartnell and Helen Gibbons},
  year = {2009},
  doi = {10.3133/gip87},
  url = {https://pubs.usgs.gov/publication/gip87},
  note = {Source identifier: gip87}
}