@misc{indiciae6cbbe0cf7660,
  title = {Radioactivity and uranium content of the Sharon Springs member of the Pierre shale and associated rocks in western Kansas and eastern Colorado},
  author = {Edwin R. Landis},
  year = {1955},
  doi = {10.3133/tei573},
  url = {https://pubs.usgs.gov/publication/tei573},
  note = {Source identifier: tei573}
}