@misc{indiciaebc6e6701b270,
  title = {Clay minerals in Triassic rocks of the Colorado Plateau},
  author = {Leonard Gene Schultz},
  year = {1963},
  doi = {10.3133/b1147c},
  url = {https://pubs.usgs.gov/publication/b1147C},
  note = {Source identifier: b1147C}
}