@misc{indiciaef0b00f86ea25,
  title = {The definition of known geologic structures of producing oil and gas fields},
  author = {Emmett A. Finley},
  year = {1959},
  doi = {10.3133/cir419},
  url = {https://pubs.usgs.gov/publication/cir419},
  note = {Source identifier: cir419}
}