@misc{indiciaee78370e2fe61,
  title = {Map showing geology, structure, and oil and gas fields in the Sterling 1 x 2 Quadrangle, Colorado, Nebraska, and Kansas},
  author = {G. R. Scott},
  year = {1978},
  doi = {10.3133/i1092},
  url = {https://pubs.usgs.gov/publication/i1092},
  note = {Source identifier: i1092}
}