@misc{indiciae17efe1101d53,
  title = {Progress of microfossil investigations, Naval Petroleum Reserve No. 4, Alaska, 1947},
  author = {H.N. Loeblich},
  year = {1954},
  doi = {10.3133/ofr54168},
  url = {https://pubs.usgs.gov/publication/ofr54168},
  note = {Source identifier: ofr54168}
}