@misc{indiciaeaca1af31ae7a,
  title = {Geology and coal resources of the Buffalo-Lake DeSmet area, Johnson and Sheridan Counties, Wyoming},
  author = {W. J. Mapel},
  year = {1959},
  doi = {10.3133/b1078},
  url = {https://pubs.usgs.gov/publication/b1078},
  note = {Source identifier: b1078}
}