@misc{indiciae68460e1b2930,
  title = {Field determination of uranium in natural waters},
  author = {Frederick Norville Ward and A. P. Marranzino},
  year = {1957},
  doi = {10.3133/b1036j},
  url = {https://pubs.usgs.gov/publication/b1036J},
  note = {Source identifier: b1036J}
}