@misc{indiciae40ced71b77a2,
  title = {U.S. Geological Survey fluorimetric methods of uranium analysis},
  author = {F. S. Grimaldi and Irving May and Mary H. Fletcher},
  year = {1952},
  doi = {10.3133/cir199},
  url = {https://pubs.usgs.gov/publication/cir199},
  note = {Source identifier: cir199}
}