@misc{indiciaed87c26678592,
  title = {Principal reference section for the Sangre De Cristo Formation (Pennsylvanian and Permian), northern Sangre De Cristo Range, Saguache County, Colorado},
  author = {D. A. Lindsey and R.A. Schaefer},
  year = {1984},
  doi = {10.3133/mf1622a},
  url = {https://pubs.usgs.gov/publication/mf1622A},
  note = {Source identifier: mf1622A}
}