@misc{indiciae8eaf2e9a4426,
  title = {Bibliography on the occurrence and uses of zeolites from sedimentary deposits, 1993-1997},
  author = {R.A. Sheppard and E.W. Sheppard},
  year = {1998},
  doi = {10.3133/ofr98370},
  url = {https://pubs.usgs.gov/publication/ofr98370},
  note = {Source identifier: ofr98370}
}