@misc{indiciae2cf8b3357d4c,
  title = {Copper, lead and zinc in Alaska},
  author = {Edward Huntington Cobb},
  year = {1959},
  doi = {10.3133/ofr5922},
  url = {https://pubs.usgs.gov/publication/ofr5922},
  note = {Source identifier: ofr5922}
}