@misc{indiciae34ad404498dd,
  title = {A comparison of simultaneous plasma, atomic absorption, and iron colorimetric determinations of major and trace constituents in acid mine waters},
  author = {J.W. Ball and D. Kirk Nordstrom},
  year = {1994},
  doi = {10.3133/wri934122},
  url = {https://pubs.usgs.gov/publication/wri934122},
  note = {Source identifier: wri934122}
}