@misc{indiciaefac145c03a49,
  title = {Geology and coal deposits in part of the Coos Bay coal field, Oregon},
  author = {Donald Cave Duncan},
  year = {1953},
  doi = {10.3133/b982b},
  url = {https://pubs.usgs.gov/publication/b982B},
  note = {Source identifier: b982B}
}