@misc{indiciae7c46020e8227,
  title = {Lithium, a preliminary survey of its mineral occurrence in flint clay and related rock types in the United States},
  author = {Harry A. Tourtelot and Elizabeth F. Brenner-Tourtelot},
  year = {1978},
  doi = {10.1016/0360-5442(78)90022-1},
  url = {https://pubs.usgs.gov/publication/70012585},
  note = {Source identifier: 70012585}
}