@misc{indiciae51dfadccbb69,
  title = {Progress report on the stratigraphy of the Triassic and associated formations in part of the Colorado Plateau region},
  author = {G.A. Williams and R. A. Cadigan and H. F. Albee and John H. Stewart},
  year = {1953},
  doi = {10.3133/tei313},
  url = {https://pubs.usgs.gov/publication/tei313},
  note = {Source identifier: tei313}
}