@misc{indiciae9cdf53bb2994,
  title = {Geological estimates of undiscovered recoverable oil and gas resources in the United States},
  author = {Betty M. Miller and H.L. Thomsen and G.L. Dolton and A. B. Coury and T. A. Hendricks and F.E. Lennartz and R. B. Powers and E.G. Sable and K.I. Varnes},
  year = {1975},
  doi = {10.3133/cir725},
  url = {https://pubs.usgs.gov/publication/cir725},
  note = {Source identifier: cir725}
}