@misc{indiciaeb8942551f4eb,
  title = {Geology of Unalaska Island and adjacent insular shelf, Aleutian Islands, Alaska},
  author = {Harald Drewes and G.D. Fraser and G. L. Snyder and H.F. Barnett},
  year = {1961},
  doi = {10.3133/b1028s},
  url = {https://pubs.usgs.gov/publication/b1028S},
  note = {Source identifier: b1028S}
}