@misc{indiciae504575ce6eaa,
  title = {Middle Bajocian ammonites from the Cook Inlet region, Alaska},
  author = {R. W. Imlay},
  year = {1964},
  doi = {10.3133/pp418b},
  url = {https://pubs.usgs.gov/publication/pp418B},
  note = {Source identifier: pp418B}
}