@misc{indiciaee49f52bfb2d4,
  title = {A reconnaissance for phosphate in the Salt River Range, Wyoming},
  author = {G. R. Mansfield},
  year = {1916},
  doi = {10.3133/b620o},
  url = {https://pubs.usgs.gov/publication/b620O},
  note = {Source identifier: b620O}
}