@misc{indiciae6c8e823a57a5,
  title = {Bibliography on the occurrence, properties, and uses of zeolites from sedimentary deposits, pre-1985},
  author = {R.A. Sheppard and E.W. Sheppard},
  year = {1994},
  doi = {10.3133/ofr94294b},
  url = {https://pubs.usgs.gov/publication/ofr94294B},
  note = {Source identifier: ofr94294B}
}