@misc{indiciaeff7ec59527cd,
  title = {Zeolites replacing plant fossils in the Denver formation: Lakewood, Colorado},
  author = {P.J. Modreski and E.R. Verbeek and M. A. Grout},
  year = {2016},
  doi = {10.1080/00357529.1984.11764438},
  url = {https://pubs.usgs.gov/publication/70013211},
  note = {Source identifier: 70013211}
}