@misc{indiciaecddddb856842,
  title = {Mississippian rugose corals, Peratrovich Formation, west coast, Prince of Wales Island, southeastern Alaska},
  author = {Augustus K. Armstrong},
  year = {1970},
  doi = {10.3133/pp534},
  url = {https://pubs.usgs.gov/publication/pp534},
  note = {Source identifier: pp534}
}