@misc{indiciae9eccc8374f52,
  title = {A study of cation exchange with vermiculite},
  author = {Marian Moeller Schnepfe},
  year = {1958},
  doi = {10.3133/ofr60122},
  url = {https://pubs.usgs.gov/publication/ofr60122},
  note = {Source identifier: ofr60122}
}