@misc{indiciaea76230cca3cf,
  title = {The Berea grit oil sand in the Cadiz quadrangle, Ohio},
  author = {William Tudor Griswold},
  year = {1902},
  doi = {10.3133/b198},
  url = {https://pubs.usgs.gov/publication/b198},
  note = {Source identifier: b198}
}