@misc{indiciae09e79b45b9b4,
  title = {Pennsylvanian carbonates, paleoecology, and rugose colonial corals, north flank, eastern Brooks Range, Arctic Alaska},
  author = {Augustus K. Armstrong},
  year = {1972},
  doi = {10.3133/pp747},
  url = {https://pubs.usgs.gov/publication/pp747},
  note = {Source identifier: pp747}
}