@misc{indiciae7f51eabd3a5b,
  title = {Geology of Umnak and Bogoslof Islands, Aleutian Islands, Alaska},
  author = {F.M. Byers},
  year = {1959},
  doi = {10.3133/b1028l},
  url = {https://pubs.usgs.gov/publication/b1028L},
  note = {Source identifier: b1028L}
}