@misc{indiciae550548896ef0,
  title = {Preliminary report on the phosphate deposits in southeastern Idaho and adjacent parts of Wyoming and Utah; Phosphate deposits east of Ogden, Utah; Survey publications on phosphates and other mineral fertilizers},
  author = {H. S. Gale and R. W. Richards and Eliot Blackwelder},
  year = {1910},
  doi = {10.3133/b430h},
  url = {https://pubs.usgs.gov/publication/b430H},
  note = {Source identifier: b430H}
}