@misc{indiciae3d4d9a1da31c,
  title = {Geological and geochemical characterization of the Lower Cretaceous Pearsall Formation, Maverick Basin, south Texas: A future shale gas resource?},
  author = {Paul C. Hackley},
  year = {2012},
  doi = {10.1306/11221111071},
  url = {https://pubs.usgs.gov/publication/70176227},
  note = {Source identifier: 70176227}
}