@misc{indiciae599c9e33fe27,
  title = {Borehole gravity surveys in native-sulfur deposits, Culberson and Pecos counties, Texas},
  author = {James W. Schmoker and Stephen L. Robbins},
  year = {1979},
  doi = {10.3133/ofr79361},
  url = {https://pubs.usgs.gov/publication/ofr79361},
  note = {Source identifier: ofr79361}
}