@misc{indiciae1f36f6779d91,
  title = {Contributions to economic geology, 1905: Introduction; Investigation of metalliferous ores; Investigation of iron ores and nonmetalliferous minerals; Gold and silver},
  author = {C. W. Hayes and S. F. Emmons and E.C. Eckel and H. S. Gale and G. H. Garrey and D. F. MacDonald and S.H. Ball and Waldemar Lindgren and L. C. Graton},
  year = {1906},
  doi = {10.3133/b285a},
  url = {https://pubs.usgs.gov/publication/b285A},
  note = {Source identifier: b285A}
}