@misc{indiciaed752f6a334d6,
  title = {Geology of the Salt Anticline region in southwestern Colorado, with a section on stratigraphy},
  author = {Fred W. Cater and Lawrence C. Craig},
  year = {1970},
  doi = {10.3133/pp637},
  url = {https://pubs.usgs.gov/publication/pp637},
  note = {Source identifier: pp637}
}