@misc{indiciae51ff68aef174,
  title = {Preliminary geologic map of the Crownpoint Quadrangle, McKinley County, New Mexico},
  author = {J. F. Robertson},
  year = {1978},
  doi = {10.3133/ofr78713},
  url = {https://pubs.usgs.gov/publication/ofr78713},
  note = {Source identifier: ofr78713}
}