@misc{indiciae7b68acc011f8,
  title = {Photogeologic map of the Mt. Pennell-12 quadrangle, Garfield County, Utah},
  author = {J.S. Detterman},
  year = {1955},
  doi = {10.3133/i48},
  url = {https://pubs.usgs.gov/publication/i48},
  note = {Source identifier: i48}
}