@misc{indiciae9a4397976000,
  title = {Eastern Gas Shales Project (EGSP) data files},
  author = {T. S. Dyman},
  year = {1981},
  doi = {10.3133/ofr81598},
  url = {https://pubs.usgs.gov/publication/ofr81598},
  note = {Source identifier: ofr81598}
}