@misc{indiciae6f7db6ee27a8,
  title = {The ore deposits of Utah},
  author = {B. S. Butler and G. F. Loughlin and V. C. Heikes},
  year = {1920},
  doi = {10.3133/pp111},
  url = {https://pubs.usgs.gov/publication/pp111},
  note = {Source identifier: pp111}
}