@misc{indiciae6b62aaf5075b,
  title = {Coal resource occurrence map and coal development potential map of the Dunn Center NE Quadrangle, Dunn County, North Dakota},
  author = {Woodward-Clyde Consultants},
  year = {1978},
  doi = {10.3133/ofr781042},
  url = {https://pubs.usgs.gov/publication/ofr781042},
  note = {Source identifier: ofr781042}
}