@misc{indiciaef7a28b135147,
  title = {Map showing metallic mineral deposits of Wyoming},
  author = {Richard P. Fischer and H.L. Cannon and A. B. Griggs and M. H. Krieger},
  year = {1947},
  doi = {10.3133/mb17},
  url = {https://pubs.usgs.gov/publication/mb17},
  note = {Source identifier: mb17}
}