@misc{indiciaec09bfb32b4bb,
  title = {Bedrock geologic map of the Philip Smith Mountains Quadrangle, Alaska},
  author = {W. P. Brosge},
  year = {1979},
  doi = {10.3133/mf879b},
  url = {https://pubs.usgs.gov/publication/mf879B},
  note = {Source identifier: mf879B}
}