@misc{indiciae42e14be1e385,
  title = {Geologic map of the Bloom Creek Quadrangle, Powder River County, Montana},
  author = {M.W. McLellan and L. H. Biewick},
  year = {1989},
  doi = {10.3133/i1968},
  url = {https://pubs.usgs.gov/publication/i1968},
  note = {Source identifier: i1968}
}