@misc{indiciae7422bdb9203d,
  title = {Model '54 transmission and reflection fluorimeter for determination of uranium, with adaptation to field use},
  author = {Ernest E. Parshall and L. F. Rader},
  year = {1957},
  doi = {10.3133/b1036m},
  url = {https://pubs.usgs.gov/publication/b1036M},
  note = {Source identifier: b1036M}
}