@misc{indiciae0225111a4a35,
  title = {Contributions to economic geology, 1906, Part I, Metals and nonmetals except fuels--Lime, Magnesite},
  author = {Charles Butts},
  year = {1907},
  doi = {10.3133/b315g},
  url = {https://pubs.usgs.gov/publication/b315G},
  note = {Source identifier: b315G}
}