@misc{indiciae68c8f4a4d0f8,
  title = {Map showing geology, oil and gas fields, and geologic provinces of Europe including Turkey},
  author = {Mark J. Pawlewicz and Douglas W. Steinshouer and Donald L. Gautier},
  year = {2003},
  doi = {10.3133/ofr97470i},
  url = {https://pubs.usgs.gov/publication/ofr97470I},
  note = {Source identifier: ofr97470I}
}