@misc{indiciaeef4319c00f63,
  title = {Geophysical and lithologic logs for 1978 coal drilling in Mountrail, Renville, Ward, and Williams counties, North Dakota},
  author = {Susan M. Cook and John M. Spencer},
  year = {1979},
  doi = {10.3133/ofr79912},
  url = {https://pubs.usgs.gov/publication/ofr79912},
  note = {Source identifier: ofr79912}
}