@misc{indiciaeaf1adda22c2a,
  title = {Geology and mineral deposits of Jumbo basin, southeastern Alaska},
  author = {G.C. Kennedy},
  year = {1953},
  doi = {10.3133/pp251},
  url = {https://pubs.usgs.gov/publication/pp251},
  note = {Source identifier: pp251}
}