@misc{indiciae8a2075794878,
  title = {Upper Silurian brachiopods from southeastern Alaska},
  author = {Edwin Kirk and Thomas W. Amsden},
  year = {1952},
  doi = {10.3133/pp233c},
  url = {https://pubs.usgs.gov/publication/pp233C},
  note = {Source identifier: pp233C}
}