@misc{indiciae9071fa2b55dc,
  title = {Contributions to economic geology, 1908, Part I, Metals and nonmetals except fuels--Iron and Manganese},
  author = {E. F. Burchard and E.C. Harder and Sidney Paige},
  year = {1909},
  doi = {10.3133/b380e},
  url = {https://pubs.usgs.gov/publication/b380E},
  note = {Source identifier: b380E}
}