@misc{indiciaea59cdb0e8907,
  title = {Distribution and properties of clinoptilolite-bearing tuffs in the Upper Jurassic Morrison Formation on the Ute Mountain Ute Reservation, southwestern Colorado and northwestern New Mexico},
  author = {P. L. Hansley and R.A. Sheppard},
  year = {1993},
  doi = {10.3133/b2061a},
  url = {https://pubs.usgs.gov/publication/b2061A},
  note = {Source identifier: b2061A}
}