@misc{indiciae5a9cdefba766,
  title = {Marble resources of southeastern Alaska, with a section on the geography and geology},
  author = {Ernest Francis Burchard and Theodore Sheffield Chapin},
  year = {1920},
  doi = {10.3133/b682},
  url = {https://pubs.usgs.gov/publication/b682},
  note = {Source identifier: b682}
}