@misc{indiciae44cd14490417,
  title = {Map of prospective hydrocarbon provinces of the world: North and South America},
  author = {A. B. Coury and T. A. Hendricks and T. F. Tyler},
  year = {1978},
  doi = {10.3133/mf1044a},
  url = {https://pubs.usgs.gov/publication/mf1044A},
  note = {Source identifier: mf1044A}
}