@misc{indiciae0bccacd521e9,
  title = {Methods for analysis of selected metals in water by atomic absorption},
  author = {Marvin J. Fishman and Sanford C. Downs},
  year = {1966},
  doi = {10.3133/wsp1540c},
  url = {https://pubs.usgs.gov/publication/wsp1540C},
  note = {Source identifier: wsp1540C}
}