@misc{indiciaecf7ad01c014b,
  title = {Reconnaissance geology of some western Aleutian Islands, Alaska},
  author = {Robert Roy Coats},
  year = {1956},
  doi = {10.3133/b1028e},
  url = {https://pubs.usgs.gov/publication/b1028E},
  note = {Source identifier: b1028E}
}