@misc{indiciae47d8f70fe964,
  title = {Analyses of some upper Paleozoic black shale samples and associated rocks},
  author = {James David Vine},
  year = {1966},
  doi = {10.3133/ofr66147},
  url = {https://pubs.usgs.gov/publication/ofr66147},
  note = {Source identifier: ofr66147}
}