@misc{indiciae22d6bfdd8b91,
  title = {Surficial geologic map of the Gillette East Quadrangle, Campbell County, Wyoming},
  author = {V. S. Williams},
  year = {1978},
  doi = {10.3133/mf947},
  url = {https://pubs.usgs.gov/publication/mf947},
  note = {Source identifier: mf947}
}