@misc{indiciae9ce459ffb2c9,
  title = {The colorimetric determination of total iron with o-phenanthroline : a spectrophotometric study},
  author = {Frank Cuttitta},
  year = {1952},
  doi = {10.3133/tei223},
  url = {https://pubs.usgs.gov/publication/tei223},
  note = {Source identifier: tei223}
}