@misc{indiciae5e365037b1d1,
  title = {Petrology and structure of Precambrian rocks, Central City quadrangle, Colorado},
  author = {P.K. Sims and D. J. Gable},
  year = {1967},
  doi = {10.3133/pp554e},
  url = {https://pubs.usgs.gov/publication/pp554E},
  note = {Source identifier: pp554E}
}