@misc{indiciae44a6d8c19c77,
  title = {Geophysical and lithologic logs for 1979 drilling in Williams County, North Dakota},
  author = {John M. Spencer},
  year = {1980},
  doi = {10.3133/ofr80646},
  url = {https://pubs.usgs.gov/publication/ofr80646},
  note = {Source identifier: ofr80646}
}