@misc{indiciaef2fef0c7a101,
  title = {Atomic absorption spectrophotometric determination of microgram levels of Co, Ni, Cu, Pb, and Zn in soil and sediment extracts containing large amounts of Mn and Fe},
  author = {T. T. Chao and R. F. Sanzolone},
  year = {1973},
  url = {https://pubs.usgs.gov/publication/70162009},
  note = {Source identifier: 70162009}
}