@misc{indiciae4d15d187b587,
  title = {Experimental gamma-ray logging of drill holes in the Calamity area, Mesa County, Colorado},
  author = {Kenneth G. Bell and Allen S. Rogers},
  year = {1950},
  doi = {10.3133/tei84},
  url = {https://pubs.usgs.gov/publication/tei84},
  note = {Source identifier: tei84}
}