@misc{indiciaeeb20e646ea78,
  title = {Maps showing geology, oil and gas fields, and geologic provinces of Iran},
  author = {R. M. Pollastro and F.M. Persits and D.W. Steinshouer},
  year = {2000},
  doi = {10.3133/ofr97470g},
  url = {https://pubs.usgs.gov/publication/ofr97470G},
  note = {Source identifier: ofr97470G}
}