@misc{indiciaed26f095e39c5,
  title = {Determination of Strontium-90 in water},
  author = {J. O. Johnson and K.W. Edwards},
  year = {1967},
  doi = {10.3133/wsp1696e},
  url = {https://pubs.usgs.gov/publication/wsp1696E},
  note = {Source identifier: wsp1696E}
}