@misc{indiciaebd12f762abb9,
  title = {Gypsum deposits near Iyoukeen Cove, Chichagof Island, southeastern Alaska},
  author = {G.M. Flint and E.H. Cobb},
  year = {1953},
  doi = {10.3133/b989b},
  url = {https://pubs.usgs.gov/publication/b989B},
  note = {Source identifier: b989B}
}