@misc{indiciae5a63d18ecc18,
  title = {Analyses of rock and stream-sediment samples from the Ketchikan Quadrangle, southeastern Alaska},
  author = {Richard D. Koch and Raymond L. Elliott and H. C. Berg and James G. Smith},
  year = {1976},
  doi = {10.3133/ofr76427},
  url = {https://pubs.usgs.gov/publication/ofr76427},
  note = {Source identifier: ofr76427}
}