@misc{indiciaecbdc61ceb8cf,
  title = {Federal onshore oil and gas lease bonus bids, 1972-1977: Statistical studies},
  author = {John Lohrenz and John A. Pederson},
  year = {1979},
  doi = {10.3133/ofr791251},
  url = {https://pubs.usgs.gov/publication/ofr791251},
  note = {Source identifier: ofr791251}
}