@misc{indiciaef12e9d33c987,
  title = {Upper Devonian radiolarians separated from chert of the Ford Lake Shale, Alaska},
  author = {Brian K. Holdsworth and D. L. Jones and C. Allison},
  year = {1978},
  url = {https://pubs.usgs.gov/publication/70162721},
  note = {Source identifier: 70162721}
}