@misc{indiciaea15ed668bd02,
  title = {X-ray mineralogy of the Parachute Creek Member, Green River Formation, in the northern Piceance Creek basin, Colorado},
  author = {Donald Albert Brobst and Jerry D. Tucker},
  year = {1973},
  doi = {10.3133/pp803},
  url = {https://pubs.usgs.gov/publication/pp803},
  note = {Source identifier: pp803}
}