@misc{indiciae9e6fe833d78f,
  title = {Tabulation of uranium and thorium data on the Mesozoic-Cenozoic intrusive rocks of known chemical composition in Colorado},
  author = {George Phair and Lillie B. Jenkins},
  year = {1975},
  doi = {10.3133/ofr75501},
  url = {https://pubs.usgs.gov/publication/ofr75501},
  note = {Source identifier: ofr75501}
}