@misc{indiciae14580fdfbf5e,
  title = {The Model '54 transmission and reflection fluorimeter for the determination of uranium, with adaptation to field use},
  author = {Ernest E. Parshall and Lewis F. Rader},
  year = {1955},
  doi = {10.3133/tei520},
  url = {https://pubs.usgs.gov/publication/tei520},
  note = {Source identifier: tei520}
}