@misc{indiciae520900f6b2ad,
  title = {Progress report on microfossil investigations, November 1948},
  author = {H.N. Loeblich},
  year = {1954},
  doi = {10.3133/ofr54169},
  url = {https://pubs.usgs.gov/publication/ofr54169},
  note = {Source identifier: ofr54169}
}