@misc{indiciaeb0ebf129f190,
  title = {Geophysical and lithologic logs for 1977 coal drilling in McKenzie County, North Dakota},
  author = {John M. Spencer},
  year = {1978},
  doi = {10.3133/ofr78451},
  url = {https://pubs.usgs.gov/publication/ofr78451},
  note = {Source identifier: ofr78451}
}