@misc{indiciaecef7d5f40746,
  title = {Surficial geologic map of the Gillette West Quadrangle, Campbell County, Wyoming},
  author = {V. S. Williams},
  year = {1978},
  doi = {10.3133/mf977},
  url = {https://pubs.usgs.gov/publication/mf977},
  note = {Source identifier: mf977}
}