@misc{indiciaec783d2de9da4,
  title = {Geologic map of the Lamar Quadrangle, Colorado and Kansas},
  author = {J.A. Sharps},
  year = {1976},
  doi = {10.3133/i944},
  url = {https://pubs.usgs.gov/publication/i944},
  note = {Source identifier: i944}
}