@misc{indiciae61c2186e5ce0,
  title = {Map showing potassium-argon ages from the Mount Katmai and adjacent parts of the Naknek and Afognak Quadrangles, Alaska Peninsula, Alaska},
  author = {Nora B. Shew and M. A. Lanphere},
  year = {1992},
  doi = {10.3133/mf2021e},
  url = {https://pubs.usgs.gov/publication/mf2021E},
  note = {Source identifier: mf2021E}
}