@misc{indiciaebade86b47f71,
  title = {Magnesium resources of the United States — A geologic summary and annotated bibliography to 1953},
  author = {Robert E. Davis},
  year = {1957},
  doi = {10.3133/b1019e},
  url = {https://pubs.usgs.gov/publication/b1019E},
  note = {Source identifier: b1019E}
}