@misc{indiciae170a26c5c274,
  title = {Geology of the sedimentary rocks of the Morrison quadrangle, Colorado},
  author = {J.H. Smith},
  year = {1964},
  doi = {10.3133/i428},
  url = {https://pubs.usgs.gov/publication/i428},
  note = {Source identifier: i428}
}