@misc{indiciae99308435c715,
  title = {Measured lignite sections in northeastern Montana and northwestern North Dakota},
  author = {Garland Bayard Gott and Irving Jerome Witkind},
  year = {1979},
  doi = {10.3133/ofr791513},
  url = {https://pubs.usgs.gov/publication/ofr791513},
  note = {Source identifier: ofr791513}
}