@misc{indiciae768f83c5beec,
  title = {Coal resource occurrence map of the Mandaree SE quadrangle, Dunn County, North Dakota},
  author = {Woodward-Clyde Consultants},
  year = {1978},
  doi = {10.3133/ofr78988},
  url = {https://pubs.usgs.gov/publication/ofr78988},
  note = {Source identifier: ofr78988}
}