@misc{indiciaeac288b8ed8b7,
  title = {Preliminary geologic map of the Maybell-Lay area, Moffat County, Colorado},
  author = {M. J. Bergin},
  year = {1959},
  doi = {10.3133/ofr597},
  url = {https://pubs.usgs.gov/publication/ofr597},
  note = {Source identifier: ofr597}
}