@misc{indiciae2cb8b7f212b0,
  title = {Radioactivity and geologic map of the Tordilla Hill-Deweesville area, Karnes County, Texas},
  author = {Jules A. MacKallor and R.M. Moxham and L.R. Tolozko and Peter Popenoe},
  year = {1962},
  doi = {10.3133/gp199},
  url = {https://pubs.usgs.gov/publication/gp199},
  note = {Source identifier: gp199}
}