@misc{indiciaea4787b4d2754,
  title = {Petroleum geology and resources of the North Caspian Basin, Kazakhstan and Russia},
  author = {Gregory F. Ulmishek},
  year = {2001},
  doi = {10.3133/b2201b},
  url = {https://pubs.usgs.gov/publication/b2201B},
  note = {Source identifier: b2201B}
}