@misc{indiciae821a306a3a6e,
  title = {Reconnaissance search in parts of Kentucky, Tennessee, Indiana, Virginia, and Ohio for areas where uraniferous black shale may be mined by stripping},
  author = {Raymond C. Robeck and Louis C. Conant},
  year = {1951},
  doi = {10.3133/tei64},
  url = {https://pubs.usgs.gov/publication/tei64},
  note = {Source identifier: tei64}
}