@misc{indiciaed5e33a313c5f,
  title = {Maps showing mineralogical data for nonmagnetic heavy-mineral concentrates in the Talkeetna Quadrangle, Alaska},
  author = {R. B. Tripp and R. C. Karlson and G.C. Curtin},
  year = {1978},
  doi = {10.3133/mf870i},
  url = {https://pubs.usgs.gov/publication/mf870I},
  note = {Source identifier: mf870I}
}