@misc{indiciae215c48da1a51,
  title = {Stratigraphic sections of the Phosphoria Formation in Wyoming, 1947-48},
  author = {V.E. McKelvey and L.E. Smith and R.A. Hoppin and F.C. Armstrong},
  year = {1953},
  doi = {10.3133/cir210},
  url = {https://pubs.usgs.gov/publication/cir210},
  note = {Source identifier: cir210}
}