@misc{indiciaef71774461cc3,
  title = {Geologic map of the Thornburg oil and gas field and vicinity, Moffat and Rio Blanco Counties, Colorado},
  author = {J. R. Dyni},
  year = {1966},
  doi = {10.3133/om216},
  url = {https://pubs.usgs.gov/publication/om216},
  note = {Source identifier: om216}
}