@misc{indiciae927f23fb6ebf,
  title = {Geologic map of the Phosphate Reserve in the Lander area, Fremont County, Wyoming},
  author = {Willis L. Rohrer},
  year = {1973},
  doi = {10.3133/mf305},
  url = {https://pubs.usgs.gov/publication/mf305},
  note = {Source identifier: mf305}
}