@misc{indiciae90fbbe26a004,
  title = {Geology and beryllium deposits of the Lake George (or Badger Flats) beryllium area, Park and Jefferson Counties, Colorado},
  author = {C. C. Hawley},
  year = {1969},
  doi = {10.3133/pp608a},
  url = {https://pubs.usgs.gov/publication/pp608A},
  note = {Source identifier: pp608A}
}