@misc{indiciae729f27deb314,
  title = {U.S. Geological survey coal exploratory program coal drilling activities — FY 79},
  author = {Gary B. Schneider},
  year = {1979},
  doi = {10.3133/ofr791356},
  url = {https://pubs.usgs.gov/publication/ofr791356},
  note = {Source identifier: ofr791356}
}