@misc{indiciae70707e724662,
  title = {Adsorbent clays their distribution, properties, production, and uses},
  author = {P. G. Nutting},
  year = {1943},
  doi = {10.3133/b928c},
  url = {https://pubs.usgs.gov/publication/b928C},
  note = {Source identifier: b928C}
}