@misc{indiciae8045a3c541f8,
  title = {Geologic and airborne radioactivity studies in the Rock Corral area, San Bernardino County, California},
  author = {Robert M. Moxham and G. W. Walker and L.H. Baumgardner},
  year = {1955},
  doi = {10.3133/b1021c},
  url = {https://pubs.usgs.gov/publication/b1021C},
  note = {Source identifier: b1021C}
}