@misc{indiciae62ff7a402b1d,
  title = {Bentonite and fuller's earth resources of the United States},
  author = {J. W. Hosterman and S. H. Patterson},
  year = {1992},
  doi = {10.3133/pp1522},
  url = {https://pubs.usgs.gov/publication/pp1522},
  note = {Source identifier: pp1522}
}