@misc{indiciae9efc4f28bddf,
  title = {Lignite in the western part of the Fort Berthold Indian Reservation south of Missouri River, North Dakota},
  author = {Clyde Maxwell Bauer and Frank A. Herald},
  year = {1921},
  doi = {10.3133/b726d},
  url = {https://pubs.usgs.gov/publication/b726D},
  note = {Source identifier: b726D}
}