@misc{indiciae0a0a55499a24,
  title = {Geology of the Pikes Peak Granite and associated ore deposits, Lake George beryllium area, Park County, Colorado},
  author = {C. C. Hawley},
  year = {1963},
  doi = {10.3133/ofr6344},
  url = {https://pubs.usgs.gov/publication/ofr6344},
  note = {Source identifier: ofr6344}
}