@misc{indiciaef4f6ac5e8153,
  title = {Collected papers on methods of analysis for uranium and thorium},
  author = {Frank Saverio Grimaldi and Irving May and M. H. Fletcher and Jane Titcomb},
  year = {1954},
  doi = {10.3133/b1006},
  url = {https://pubs.usgs.gov/publication/b1006},
  note = {Source identifier: b1006}
}