@misc{indiciae1473658e4360,
  title = {The action of some aqueous solutions on clays of the montmorillonite group},
  author = {P. G. Nutting},
  year = {1943},
  doi = {10.3133/pp197f},
  url = {https://pubs.usgs.gov/publication/pp197F},
  note = {Source identifier: pp197F}
}