@misc{indiciae7530eed32a96,
  title = {A bibliography of selected references to U.S. marine sand and gravel mineral resources},
  author = {S. Jeffress Williams and Jamey M. Reid and Frank T. Manheim},
  year = {2003},
  doi = {10.3133/ofr03300},
  url = {https://pubs.usgs.gov/publication/ofr03300},
  note = {Source identifier: ofr03300}
}